What are the parts of a watch called? Calendar in a wristwatch

Auto quartz movement

Combines the advantages of a quartz movement and an automatic movement. The energy needed to run the watch is generated by a generator that charges the watch's rechargeable battery, all that is required is a simple hand movement. A fully charged watch battery provides the watch for 50-100 days. Hybrid of automatic and quartz movement.

automatic watch (English Automatic watch or Self-winding watch, French Montre automatique, German Automatische uhr)

Mechanical watch with automatic winding. The earliest automatic watch made in Switzerland around 1770 was by A.-L. Perrelet of Le Locle. The automatic winding mechanism was modified by A.-L. Breguet (Abraham-Louis Breguet). The principle of operation put by Breguet as the basis of the automatic winding mechanism was similar to the principle of operation of pedometers popular at that time. The automatic watch winding system was developed at the beginning of our century. Rolex made a great contribution to the creation of a reliable and efficient design of the automatic winding system for wristwatches. The modern self-winding mechanism was first introduced in 1931 by Rolex.

Crystallized carbon, the hardest substance in the world. Brilliant, pure, colorless carbon, lustrous due to cutting. Used to decorate bracelets, cases, rings, etc.

shock absorbers

Devices designed to protect the axes of the mechanism parts from breakage under impulse loads.

Analog clock

A clock showing the time with hands.

Anchor mechanism (anchor)

It consists of an escape wheel, a fork and a balance (double pendulum) - a part of the clock mechanism that converts the energy of the main (winding) spring into impulses transmitted to the balance to maintain a strictly defined oscillation period, which is necessary for uniform rotation of the gear mechanism.

Anti-magnetic watch>

A watch whose mechanism is located inside a magnetically protective case made of a special alloy that protects the watch from magnetization.

Aperture

A small hole (window) in a watch face that shows the current date, day of the week, etc.

astronomical clock

A watch with an indicator of the phase of the moon, the time of sunset and sunrise, and in some cases the movement of the planets and constellations. See also "astronomical time" for details.

Atmosphere

Pressure in one atmospheric unit (English ATU). Corresponds to sea level pressure. Excessive pressure of one atmosphere acts under water at a depth of approximately 10.33 meters.

A method of cutting precious (and semi-precious) stones in the form of a rectangle.

This is the name of watch movements of an elongated rectangular shape.

The balance wheel together with the spiral, forming an oscillatory system that balances the movement of the clock's gear mechanism.

White gold

The white color of the gold alloy is due to the addition of palladium and is distinguished by its brightness and brilliance. White gold has become a fashionable material that the most famous jewelry designers love to use to create their masterpieces, and has already gained popularity among connoisseurs of precious jewelry. White gold jewelry is a kind of sign of prestige and belonging to the upper class all over the world. It is very similar to platinum, but costs about 45% less.

Alarm

A pocket watch, wristwatch or small watch equipped with an alarm clock mechanism that starts at a predetermined time. See also "alarm clock" for more details.

perpetual calendar

So, watches with calendars are divided into three types: Quantieme Simple, Quantieme perpetue and "Perpetual Calendar". The first ones, Quantieme Simple, show not only the date, but also the days of the week, months, and sometimes the phases of the moon. As a rule, all this information is shown on additional small dials, sometimes in windows, and in some cases using a combination of both. All date corrections are made manually.

Unlike a quartz movement, which can be programmed for different lengths of months, building a mechanical watch that would take into account all the intricacies of the Gregorian calendar is more than difficult. Therefore, Quantieme perpetuel and "Perpetual Calendar", in some cases containing up to 650 parts, firmly occupy their places among the works of watchmaking art and sophisticated mechanisms. Quantieme perpetue, often associated with the "Perpetual Calendar", includes a mechanism that adjusts itself to different numbers of days in a month - 28, 30 or 31. The "Perpetual Calendar" also contains a leap year indicator. Revolving once a year, the monthly indicator of this watch is connected to a gear divided into four sectors, one of which indicates a leap year. This gear makes a complete revolution in four years. Thus, without human intervention, the "Perpetual Calendar" accurately indicates the date, day of the week, month, phases of the moon and leap year. See also "perpetual calendar" for details.

Water resistance (English waterresistance, French Etancheite, German Wasserdichtheit)

The property of the watch case to prevent depressurization (moisture ingress) of the clock mechanism. The degree of water resistance of watches is usually stated in pressure units, and most often in atmospheric units (ATU). This value must correspond to the overpressure at which the manufacturer guarantees the preservation of the tightness of the housing. Often the degree of water resistance is indicated in meters. Ten meters corresponds to approximately one atmosphere. This feature was first introduced by Rolex in 1926. See also "watch water resistance" for more details.

Time in the second time zone

A watch showing the time in a second time zone is usually called Dual Time, World Time or G. M. T. (from Greenwich Mean Time - "Greenwich Mean Time"). There are watch models that show the time in several time zones at once. See also "GMT Hours" for details.

helium valve

The helium decompression valve has been specially developed for watches used by professional divers. Long-term deep-sea work is carried out using a diving bell filled with a breathing mixture of helium and oxygen. Helium molecules are lighter than air. Therefore, helium is able to penetrate into the watch in large quantities and squeeze out its glass during decompression. This can be prevented by opening a helium valve during ascent to the surface, which allows helium to pass through but retains water.

Guilloche (French guilloche)

Decorative processing of the dial or watch case, or simply speaking - engraving in the form of lines or waves. It is performed using a manual machine and only a very high-class master can do it. For this reason, guilloche watches are produced exclusively by reputable watch companies and only in handmade watch series.

annual calendar (English Annual Calendar)

A watch calendar device that has date, day of the week and month indicators, but does not have a leap year indicator or a year indicator, which is how this mechanism differs from the perpetual calendar. The annual calendar does not require the intervention of the owner during the end of months with 31 or 30 days, but at the end of February of each year, a correction is necessary. See also "annual calendar" for details.

blue gold

If rhodium plating is applied to gold, then the product gives off a cold blue. But it turns out that using gold, you can also get a blue alloy. Argentine jeweler Antoniassy spent five years experimenting with different materials to turn the yellow metal into blue. The alloy he received contains 90% gold. Antoniassy is in no hurry to discover the technology for obtaining the blue miracle, but experts believe that the whole secret is in cobalt additives. Blue gold alloy is also known. It contains iron as an impurity.

Thermometer

A device designed to adjust the period of balance oscillations by changing the effective length of the spiral. The end of the last turn of the spiral, before fixing it in the block, freely passes between the pins of the thermometer. By moving the pointer, the thermometer to one of the sides on the scale applied to the surface of the bridge, they achieve a change in the course of the clock.

diving watch

The body must be made of a material that does not interact with sea water, such as titanium.

The watch must also have a fully threaded screw-down bottom with an o-ring or other type of crown sealing mechanism. The crown must be screwed on.

It is also advisable to have a sapphire glass with a non-reflective coating.

The watch_water-resistance (usually indicated on the case back) must be 300 meters or more.

The hands must also be coated with a luminescent material so that the time can be accurately read even in very low light. The indication must be applied at 5 minute intervals and must be clearly visible at a distance of 25 cm in the dark underwater. The same legibility conditions apply to arrows and numbers.

The bezel must only be rotated counter-clockwise so that the dive time reading can only be increased, not decreased, as a result of erroneous rotation, which could lead to a life-threatening lack of air for the diver.

The bracelet of such a watch can usually be worn on the cuff of a diving suit, as a rule, it should not contain materials that interact with sea water.

Each diving watch must be individually tested and 100% of the quality standards. The check is carried out comprehensively: legibility of inscriptions, anti-magnetic properties, shock resistance, reliability of bracelet clasps and reliability of the rim. And of course, they must withstand exposure to salt water and sudden changes in temperature. Under all these conditions, the clock should work. See also "waterproof watches" for details.

Ordinal number denoting the day of the month: (for example - "February 9"). Date watch: A watch that shows the date. Also called calendar clock or just calendar. Endless calendar: a clock showing leap years as well as dates.

Bicolor watch (English bicolor)

A term commonly used to refer to watches with a case (and bracelet) made of stainless steel and gold.

dynamograph

An indicator of the force produced by the drum spring.

Disc plate, wheel

Thin, flat, round plate. Date disk - a disk that rotates under the dial and shows the dates through the holes. Disk of days, disk of months, disk of lunar phases.

Indicator, mechanical, electrical or electronically controlled. Alphanumeric display. Display showing the time in the form of letters and numbers, digital display.

Pendulum length (PL)

For identification, the concept of the "nominal length" of the pendulum is used (with a certain number of oscillations per hour for each "nominal length"). The dimensions of the pendulum actually used in clocks differ from the nominal ones.

jacquemarts (French Jaquemarts, English Jack)

Moving figures of watch mechanisms, which strike the time (in tower clocks, grandfather clocks), or imitate it (in pocket and wrist watches).

yellow gold

It has the real color of gold - sunny, bright, yellowish, in a word, golden. It is for this that gold has long been valued and gained fame as a precious metal, and has also become a symbol of royal power and wealth. Yellow gold is popular in the West as a metal for engagement rings. There is an opinion shared by all that yellow gold best of all symbolizes the warmth and love of spouses. Yellow gold is mostly 750 gold.

A method of supplying a mechanical watch with the energy necessary for its operation. There are two classic ways to wind wrist and pocket watches - manual and automatic. With manual winding, the mainspring of the watch is twisted using the crown of the watch - manually. With automatic winding, a massive weight (rotor) of a special shape “works”, which comes into rotation when the watch moves. The rotor transfers the rotational energy to the mainspring.

Crown

An indispensable watch element, even found in analog quartz watches where winding is not required. In mechanical watches, the crown is used for winding, correcting the time and date. In quartz - to stop the clock, correct the time, date, switch modes.

gate valve

A grip that can be used from the outside of a watch case to start the movement. Valve installation.

Mechanical watch power reserve (English Power Reserve, French Reserve de marche, German Gangreserve)

The ability of a watch mechanism to continue to function normally for a specified time without additional winding of the spring. The power reserve of a fully wound wristwatch is typically over 40 hours.

sidereal (sidereal) time

Time measured by the positions of the stars. Local sidereal time at any point is equal to the hour angle of the vernal equinox; on the Greenwich meridian, it is called the Greenwich star. The difference between true sidereal and mean sidereal time takes into account small periodic oscillations of the earth's axis, called nutation, and can reach 1.2 seconds. The first of these times corresponds to the movement of the true point of the vernal equinox, and the second is measured by the position of the imaginary midpoint of the vernal equinox, for which the nutation is averaged.

green gold

Green (olive) gold can be obtained as an alloy of gold with potassium. Such compounds are also called metallides. In general, metallides are compounds of gold with aluminum (purple gold), rubidium (dark green), potassium (violet and olive), indium (blue gold). Such alloys are very beautiful and exotic, but at the same time they are fragile and not ductile. As a precious metal, they cannot be processed, so you will not find a green gold ring. But sometimes such jewelry metal alloys are used as inserts in jewelry, like exotic stones. By the way, sometimes green gold is also obtained by fusing pure gold with silver. A small inclusion of silver in the composition of the jewelry alloy will give a greenish color, a slightly larger proportion will make gold yellowish green, increasing the silver content even more, we get a yellow-white tint, and finally completely white.

A precious metal whose alloys are used in the manufacture of watches and jewelry. Gold alloys, depending on the composition, have different colors: white (white gold), yellow (yellow gold), pink (pink gold), reddish (red gold). In its purest form, gold is yellow. See also "gold watch" for details.

gears

In mechanical watches, they are designed to supply energy to the oscillator and count its vibrations. In analog quartz - for connection stepper motor with arrows and pointers.

Meter, counter, timer

Any instrument that counts or measures. Minute counter, in a chronograph, a mechanism that shows on the dial the number of revolutions of the chronograph hand, that is, the number of minutes. Timer, a mechanism with a large second hand in the center that jumps forward at intervals of 1/5, 1/10, 1/50, 1/100 seconds, according to the type of device. Another smaller hand counts the minutes.

Power reserve indicator

Sub-dial showing the degree of winding of a mechanical watch spring. It shows the time left before the clock stops, either in absolute units - hours, days, or in relative units - for example, 1/4, 1/2, 3/4, 1.

Moon phase indicator (Eng. Moon Phase Indicator)

Dial with 29 1/2 day graduations and a rotating indicator depicting the moon. The indicator at each moment of time shows the current phase of the moon. Since the lunar month does not contain 29.5, but on average about 29.5306 mean days, any indicator of lunar phases needs to be corrected from time to time. In the most perfect mechanisms, the error of the lunar calendar in one day accumulates over a period of more than a hundred years.

Ears, bezel, dial, watch bracelet.

Calendar (French Quantieme, English Calendar, German Kalender)

In the simplest case, it is present in the clock in the form of a window in which the date is displayed. More sophisticated devices show a way of cutting gemstones in which the stone has a flat base. Cabochons are used to decorate the crown, give the date and day of the week, some additionally have a month indicator (in this case, the calendar is called complete) or week numbers - from 1 to 52. The most complex calendar mechanism is the perpetual calendar, in which, in addition to the date indicators, the day weeks and months, there is a leap year indicator or a year indicator. The perpetual calendar does not require owner intervention during the end of a short month (30, 28 days) and in a leap year. The most advanced movements are programmed for over a century, and some watch models - up to 2500 years. Date, day of the week, week number, month, year can be displayed on the dial in three ways. The first one is in the dial windows. The second - on additional dials. The third way is on sector dials, when the arrow, having reached its extreme position, returns to its initial position. This is the rarest...

A term used when naming a mechanism. Historically, the caliber corresponds to the largest overall size clock mechanism presented in lines. One line is 2.256mm. But a manufacturer can use the word "caliber" without associating it with size, as, for example, Patek Philippe's Caliber 89 is named after the year it was created - 1989.

stone supports

Plain bearings used in watches, made of artificial or natural precious stones. The main material for stone supports in modern watches is an artificial ruby.

A term used to refer to watch parts made from precious stones, synthetic or, more rarely, natural. Wrist mechanical watch good quality have 15-17 jewels: two pallet ones, one - impulse on the impulse balance roller, two each - bearings and supports on the balance axis, anchor, seconds and intermediate wheels, etc. More expensive watches have more stones. The use of pallets, impulse stones, trunnion supports and artificial ruby ​​axles reduces energy losses due to friction and wear of parts.

A measure of the gold content in alloys, equal to 1/24 of the weight of the alloy. Pure metal corresponds to 24 carats. The 18 carat gold alloy contains 18 parts by weight of pure gold and 6 parts by weight of other metals. Along with this, the metric system is widely used, in which the content of precious metal in an alloy weighing 1000 grams is determined in grams. Here are some standard sample values ​​established in various systems. 23 carats - 958 samples, 21 carats - 875 samples, 18 carats - 750 samples, 14 carats - 583 samples. The sample of products is guaranteed by the imprint of a special brand on them.

A fractional unit of mass used in jewelry. K=200 milligrams or 0.2 grams.

Pocket watch

Pocket watch - a device for determining the current time of day and measuring the duration of time intervals. Which, according to its purpose, dimensions and design, is designed to be carried in a pocket of clothing. See also "pocket watch" for details.

Quartz watch (eng. Quartz watch)

A watch in which the time-setting element is a quartz resonator - a specially processed plate of quartz crystal. Quartz watches are analog - i.e. show the time using hands and dial marks and digital, with a digital indicator, liquid crystal or LED. See also "quartz watches" for details.

Ceramics

Derived from the Greek word "Keramos", meaning material made in a kiln. In watch mechanisms, first of all, these two oxides Al2O3 and ZrO3 (polycrystals). They are used to make cases and decorative elements, sapphire (Al2O3 monocrystalline) for glasses and jewelry (Al2O3 + Cr2O3) for watch stones.

Coaxial arrangement of elements

A term indicating that parts have the same axis of rotation. In watches, many elements are arranged coaxially. If we talk about the internal elements, then these are the axes of the hour and minute hands in their classical arrangement.

Compensation

Temperature compensation is carried out in the watch in order to reduce the effect of temperature on the accuracy of the watch. Since the influence of temperature has not yet been completely eliminated, the most accurate clocks are located in temperature-controlled rooms when necessary. Compensation for wrist and pocket watches is carried out by various methods, the main one being the selection of materials for the balance wheel and spiral.

brown gold

To give gold products brown color, they are subjected to a special chemical treatment. Most often, alloys of 585 or 750 samples with a high copper content are used. As a result, brownish-black compounds are formed on the surface of the product. In order to obtain a stable coating, this operation must be repeated several times.

In watchmaking, a crown wheel, an American term for a transmission wheel that meshes with a winding trunnion (incorrectly called a crown wheel by the English) and a ratchet wheel on the cylinder shaft. Plant button (also, especially in the USA - crown), button various forms notched, making it easier to wind the watch by hand. Crown push-button with additional movable crown for chronographs or sports stopwatches.

watch case (English (Watch-) Case)

It serves to protect its content - the mechanism - from the influence of external factors. For the manufacture of the case, metals or their alloys are usually used: bronze or brass, which can be plated with gold, nickel, chrome; stainless steel; titanium; aluminum; precious metals: silver, gold, platinum, very rarely others. Non-traditional materials: plastic (Swatch watches); high-tech ceramics (Rado); titanium or tungsten carbides (Rado, Movado, Candino); natural stone (Tissot); sapphire (Century Time Gems); wood; rubber.

Line, French or Parisian line

A traditional measure of the size of clocks or mechanisms. One line is equal to 2.256 mm.

Lyre Pendulum

A pendulum which consists of vertical rods connected in the middle and which has a decorative lyre decoration above the pendulum lens.

Maltese cross

An element of a watch mechanism used to limit the tension of a mainspring. The name came from the fact that this detail resembles the shape of the Maltese cross (with rays expanding from the base). The Maltese Cross is the emblem of Vacheron Constantin.

Marquetry (fr. Marqueteries - place, line, mark)

A set of thin plates of wood (veneer) with a thickness of 1 to 3 mm, of various species, exotic - such as the roots of American walnut, wavona, myrtle, mahogany, lemon or sandalwood, for example, or familiar to us: burl poplar, whose veneer is beautiful material, walnut, ash, oak, maple, apple or pear, which are glued together along the edges in the form of a pattern or ornament, and then glued onto the base - a flat wooden surface.

The technique of wood mosaic (marquetry) has been known since time immemorial and has always been shoulder-to-shoulder with a similar style of intarsia (from Italian - intarsio), which is the predecessor of marquetry and is a more labor-intensive process of creating a pattern in which an image is made from thin slices of wood and other materials (precious stones, metals, mother-of-pearl) crashes into a tree.

A resonant device that, by oscillating, determines the period of movement of a clock mechanism. Spring pendulum - the regulating part of the clock, consisting of a pendulum and its spring. Before the invention of the pendulum spring, clocks were driven by a single pendulum. Additional installation The spring gives the pendulum two important properties: 1) the ability to return automatically to its original position, and 2) a clearly defined period of operation. See also "mechanical watch"

honey gold

An alloy of gold with copper, manganese and silicon. It is 1.5 times harder than stainless steel. Invented in the workshops of A. Lange & Sohne. Such gold is suitable not only for cases - for example, balance bridges are made from it. Three Homage to F. A. Lange watch models were produced from this material.

Release mechanism

A device that stops the joint movement of two parts. Stop and start mechanism.

Marine chronometer

The most accurate mechanical watch, placed in a special case that constantly keeps the watch mechanism in a horizontal position. Used to determine the longitude and latitude of a ship in the ocean. The special case eliminates the influence of temperature and gravity on the accuracy of the movement.

pendulum hammer

Pendulum block. Modern pendulum hammer. The only feature of this part is that it has a hole in which a spacer for a spring pendulum is installed. Acts as a transmission arm for the moving pointer.

Part of a clock mechanism that serves to fix the supports of the axles of watch wheels. The name of the bridge corresponds to the name of the wheel.

A table clock

Table clock - a device for determining the current time of day and measuring the duration of time intervals in units less than one day. Which, according to its purpose, dimensions and design, is intended for installation on a table. See also "desk clock" for details.

Cylinder axis

An axle supporting a cylinder and its spring. It consists of a cylindrical part, which is called the center and a hook to which the inner end of the main spring is attached. The upper trunnion of the cylinder axle is cut in the shape of a square for a ratchet wheel. Cylinder axle trunnions are inserted into holes in the bottom plate and cylinder.

Palladium (from lat. Palladium)

The metal is white, belongs to the platinum group. Pure palladium and its alloys are used in the manufacture of watches and jewelry.

Parachute (or parachute)

Design of depreciation of balance support pins (invention of Abraham-Louis Breguet). In the first version, Breguet created sharply conical pins that rested on a large and absolutely impenetrable stone (ruby) with a spherical recess. This stone was held by an oblong leaf-shaped spring in such a way that it could deflect upwards in the event of a blow and then return to its original position under the pressure of the spring. In the event of a side impact, the pin could slide along the inner wall of the hole, thereby pushing the stone up, and then automatically re-center. The travel distance of the stone could be adjusted using a micrometer screw located at the end of the leaf-shaped spring. To limit the movement of the balance legs, Breguet inserted a disk in front of both pins: if the impact shook the watch, these disks could strike the internal surfaces of the balance bridge or the plate.

cloisonne enamel (French Email cloisonne, English Cloisonne enamel, German Zeilenschmelz)

Sophisticated technology used in the manufacture of handmade dials. The essence of the technology lies in the manufacture of deep recesses in the dial, into which the wire is then placed. The gaps between the wires are filled with a thin layer of powder, which, after firing, turns into hardened enamel, which is then polished.

Plank, clamp

In a wristwatch, a thin metal rod inserted between the lugs to attach a watchband.

Platinum (1)

A white precious metal used in the manufacture of expensive watches and jewelry. See also "platinum watches" for more details.

Platinum (2)

The main and usually the largest part of the frame of the watch mechanism, which serves to fasten the bridges and supports of the watch wheels. The shape of the platinum determines the shape of the movement.

Gilding

Coating the case and/or bracelet of a watch (usually made of steel) with a thin layer of gold. Mostly there is gilding with a thickness of 5 and 10 micrometers. Currently, PVD (Physical Vapor Deposition) coating is widely used in the watch industry - superhard titanium nitride is applied to the case material in a vacuum, on top of which an ultrathin layer of gold is applied. The PVD coating has a high degree of resistance to wear and scratches, while the gilding wears off an average of 1 micron per year, depending on clothing, etc. The PVD coating technology allows you to get very thin (from 1 to 3 microns, sometimes up to 5 microns) coating layers without any impurities. IPG (Ion Plating Gold) - a method of ion deposition of gold with a substrate (intermediate hypoallergenic layer), today is the most wear-resistant gilding (IPG-coating is 2-3 times more wear-resistant than PVD-coating of the same thickness). Thickness of gilding 750°: 1-2 microns.

Try (English hallmark)

Shows the percentage of pure precious metal content in the alloy. The sample of products is guaranteed by placing on them imprints of a special hallmark, also called a sample.

Sample of Geneva (Poincon de Geneve)

Evidence of the special quality of the watch. The "Geneve Watch Control Bureau", operating in the Canton of Geneva, has the sole task of putting on the watches provided by local manufacturers, the official mark, as well as issuing a certificate of origin or making a special external marking. The inscription "Geneve" can appear on the watch legally only on the condition that a number of certain rules are observed. The quality of watches must meet strict requirements. They must be "Swiss" and have a direct connection with the canton of Geneva: at least one of the main manufacturing operations (assembly of the movement or its installation in the case) must be carried out in the canton of Geneva and at least 50% of the total value of the product must be made in the same canton.

shockproof device

It consists of special movable supports, in which thin parts of the balance axis are attached. The movable support is designed in such a way that in case of axial or side impacts, the balance axis moves up or sideways and abuts against the limiters with its thickened parts, protecting the thin parts of the axis from breakage or bending.

heart rate monitor

Based on its name, the heart rate monitor is designed to measure the number of heartbeats per minute - our pulse. The location of the heart rate scale is the same as that of the tacho and telemetry scales. On the heart rate monitor dial, the base number of heart beats is usually indicated (the most common scales are 20 or 30 beats). To measure the pulse, it is enough to measure the interval during which this number of beats occurred - the hand of the chronograph second accumulator will show the value of the pulse on the pulsometric scale.

Travel reserve

The power reserve or reserve de marche is a device increasingly found in mechanical watches. The power reserve indicator shows the power reserve, usually expressed in hours on a 40-46 hour scale or, in the case of a large factory reserve, on a scale of up to 10 days. As a rule, the data is displayed with a single arrow placed in the sector of the upper part of the clock.

Remontoir, or "remontoir", or "remontoire"

A constant force device in a clock - an auxiliary spring (or other device) designed to solve the problem of isochronism. Its use significantly improves the accuracy of watches with a power reserve of several days or more. In Russian, the word "remontour" historically had a different meaning - it means any mechanism for winding watches and moving hands without using a winding key.

Repassage

Complete repair of the clock mechanism.

A complex mechanical watch with an additional mechanism designed to indicate the time using sounds of different tones. Typically, such watches, when you press a special button, beat the hours, quarters of an hour and minutes. In the Grand Sonnerie models, the hours and minutes strike automatically, although they can also indicate the time by pressing a button. See also "repeater" for more details.

Reference

Rhodium (from lat. Rhodium)

A metal belonging to the platinum group. It is used in the watch industry to cover parts of the clockwork, dial.

Rose, red gold

Copper gives a reddish tint. The most popular and affordable type of gold in Russia. Most often it is represented by gold of the 585th test.

Rotor (inertial sector)

A heavy metal semi-disk freely rotating around the axis of the watch, which, with the help of a reversing device, converts the energy of its two-way rotation into the energy needed to wind the spring.

Manual winding spring mechanism

The energy source of a mechanical watch is a spiral spring located in a drum with a jagged edge. When the watch is wound, the spring is twisted, and when unwinding, the spring sets in motion the drum, the rotation of which sets the entire clock mechanism in motion. The main disadvantage of the spring motor is the uneven rate of unwinding of the spring, which leads to inaccuracies in the clock. Also, for a mechanical watch, the accuracy of the course depends on many factors, such as temperature, position of the watch, wear of parts, and others. Therefore, for a mechanical watch, a discrepancy with the exact time of 15-45 seconds per day is considered the norm, and the best result is 4-5 seconds per day. Mechanical watches with manual winding must be manually wound using the crown.

An elongated part that precisely connects other parts of the mechanism.

The basic unit of time, which is 1/86000th part of a solar day, i.e. the time it takes for the earth to rotate around its own axis. With the advent of atomic clocks after the Second World War, it was found that the Earth rotates with an infinitesimal irregularity. Therefore, it was decided to reset the standard for measuring the second. This was done at the 13th General Conference of Weights and Measures in 1967. The following was determined: A second is a period of time equal to 9.192.631.770 periods of radiation of the cesium-133 atom during the transition between two adjacent stable levels.

White precious metal. An alloy of silver with zinc and copper is used to make the case and dial.

blue gold

An alloy of gold with iron and chromium. Like green and purple gold, blue gold can only be used as inlays in jewelry. By itself, the blue alloy is fragile and it will not work to make a jewel only from it.

Skeleton (French skeleton)

A watch with a transparent dial through which the mechanism is visible. The back of the watch is often made transparent as well. The details of the mechanism of such watches are decorated with engraving, covered with noble metals, sometimes decorated with precious stones. See also "skeleton" for details.

Added to the main clock mechanism is called Complication. The most famous functions are: Chronograph, Perpetual Calendar, Tourbillon, Moon Phase Indicator. Less common are Power Reserve, Equation of Time, Jumping Hour, Musical Combat (Grande et Petite Sonnerie), World Time (or Dual Time, or G. M. T.) , the time of sunset and sunrise, an indicator of the relative position of the planets in the solar system, a map of the starry sky, etc. Some watches may have a built-in thermometer, pressure gauge, air humidity meter, compass.

Spiral Breguet

A spiral, the inner and outer ends of which are bent so that the period of oscillation of the balance-spring system does not depend on the oscillation amplitude (system isochronism). The invention of A.-L. Breguet.

Spiral or hair (English Hairspring, Balance-spring)

A thin coil spring with a large (usually 11 to 13 in escaping watches) number of turns. The inner end of the spiral is fixed on the balance axis, and the outer one - on the block.

Split Chronograph

A watch with a stopwatch that has an intermediate finish function. See also "split chronograph" for details.

Greenwich Mean Time (Greenwich Mean Time, abbreviated as G.M.T.)

A term that means the average time on the zero meridian, on which the famous astronomical observatory of Great Britain is located. The abbreviation G. M. T. is often used in the name of watches with the function of showing the time of the second time zone.

316L steel is an iron alloy containing molybdenum and has high chemical resistance. The so-called "surgical steel", used by physicians for implantation into the human body. This steel has low chemical activity (resistance to water and sea water, has anti-allergic properties), does not darken and is not subject to corrosion, sufficient hardness, scratch resistance, and low brittleness. The composition of steel 316L includes: Chrome - 16-18%; Nickel - 10-14%; Molybdenum - 2-3%; Manganese - 2%; Silicon - 0.75%; Nitrogen - up to 0.1%; Carbon - up to 0.03%; Phosphorus - up to 0.045%; Sulfur - up to 0.03%; The rest of the proportion is occupied by iron.

The anti-corrosion properties of 316L steel are due to the presence of a layer of chromium oxide on the metal surface. This protective layer is very stable and even after mechanical or chemical damage quickly acquires its former appearance, and the anti-corrosion properties of the metal remain unchanged.

904L is a stainless chromium nickel super austenitic steel alloyed with molybdenum and copper. In GOST, it appears as 06XH28MDT. Approximate composition: Chromium - 19-21%; Nickel - 24-26%; Molybdenum - 4-5%; Manganese - 2%; Copper - 1.2-2%; Silicon - 0.7%; Nitrogen - up to 0.15%; Carbon - up to 0.02%; Phosphorus - up to 0.045%; Phosphorus - 0.03%; Sulfur - up to 0.01%. This steel has low magnetic properties - it is difficult to magnetize it

An additional dial (or several) of the chronograph, which shows the minutes, hours of the recorded time interval.

Tachymetric scale

Needed (theoretically) to determine the speed of movement. It is very difficult to find a use for it, except perhaps on a train or bus you want to know its speed. Then, passing the kilometer post, it is necessary to start the measurement. When passing the next column - determine the speed on the scale. This feature works more or less in chronographs, where you can force start or stop the second hand. In simple watches, such a scale is generally decorative. So an example: you start a stopwatch while passing a pole, and the next pole appeared in half a minute - your speed on the scale is 120 km / h, if after a minute - then 60. I hope that there is nothing complicated. However, I would like to note that in our country the distance between the pillars is not always equal to a kilometer. So on the Moscow Ring Road, the distance between the pillars varies from 600 kopecks to 1800 meters.

Tachometer

A device that allows the wearer to measure average speed movement (in kilometers per hour) on a fixed section of the path using the chronographic function of the watch. As a rule, most modern chronographs are equipped with a tachometer scale located on the outside of the dial (either on the dial itself or on the watch case). Typically, the scale is normalized to a 1 km section of the track, and the values ​​\u200b\u200bindicated on it correspond to the average speed over this distance. For example, if the owner of the watch is driving a car on a highway with kilometer markings, then in order to determine the speed, it is enough for him to use a chronograph to record the time it takes to travel a section of 1 km. At the same time, the chronograph second drive hand will indicate on the seconds scale the time for which 1 kilometer of the path was covered, and on the tachometric scale - the average speed of movement in this section. The above is true for speeds exceeding 60 km / h (in this case, the measurement time does not exceed 60 s and the second accumulator hand makes no more than one revolution). In the case of measuring lower speeds (less than 60 km / h, more complex coaxial scales are used, each of which corresponds to the second, third, etc. turn of the chronograph seconds hand, i.e. time intervals of 60-120 s., 120 -180 s., etc.

Twinsept

Digital data seems to "float" above the analog dial.

GTLS technology

Sealed, small glass tubes, coated on the inside with a phosphor, are filled with gaseous tritium. The electrons emitted by tritium, interacting with the phosphor, cause its cold glow.

The appearance of Trigalight light sources was the result of ten years of research and development in the field of radioluminescence, carried out by the Swiss company MB-microtec.

Trigalight sources do not need maintenance and have a service life of at least 10-12 years! Today, MB-microtec ag ​​is able to produce light sources with a diameter of only 0.55 mm and a length of 1.3 mm.

Trigalight production technology includes coating the inside of glass flasks with a phosphor, filling them with the hydrogen isotope H3, followed by sealing.

Later, using a specially designed laser, long glass capillaries are cut into elements of the required length.

The service life of trigalight sources depends not only on tritium fission (half-life is 12.3 years), but also on a number of additional factors.

Telemeter

A telemeter can be used to determine the distance from an observer to a sound source. As in the case of the tachometer, the telemeter scale is located along the edge of the dial, next to the second accumulator scale. So, in order to determine the distance from the observer to the storm front during a thunderstorm, it is enough to measure with the help of a chronograph the time between the flash of lightning and the moment the thunder roll arrives at the place of observation. At the same time, the chronograph second drive hand will indicate on the seconds scale the time between the flash of lightning and the roll of thunder, and on the telemetric scale - the distance from the observation point to the thunder front. The calculation of the telemetric scale is made using the value of the speed of sound in air - 330 m/s. Those. the maximum distance that can be measured using the telemeter scale is about 20,000 m, which corresponds to a time delay between flash and sound of 60 s. This function is often used by the military to determine the distance to enemy artillery, by the time between the flash from a volley and the explosion.

Titanium (from lat. Titanium)

Silver gray metal, light, refractory and durable. Resistant chemically. It is used in many areas of human activity, including for the manufacture of watches. See also "titanium watch" for details.

Tonneau (French Tonneau - barrel)

The name of the shape of a watch case that resembles a barrel. It is also sometimes called a watch, the case of which is barrel-shaped.

Trust index

Balance wheel amplitude indicator. The fact is that with a fully wound spring, the amplitude of vibrations of the balancer of a mechanical watch is slightly higher than the optimal value, and by the end of the winding, on the contrary, it is slightly less. Thus, by maintaining the optimum level of oscillation, without over-tightening the spring, and without allowing the spring to fully discharge, the wearer can maintain a high level of accuracy.

tourbillon

The name comes from the French "tourbillon" (whirlwind). The tourbillon was created in 1801 by Abraham-Louis Breguet and was supposed to use torque to compensate for the effect of gravity on the pocket watch mechanism. In the general case, a tourbillon is a device that compensates for the influence of a constantly acting force on the balance. The essence of the invention lies in the fact that the balance axis itself, in turn, makes a circular motion. Due to this, any force constantly acting on the balance during the period of rotation of the axis acts on the balance from all sides, compensating itself. Since many different factors affect the accuracy of the movement, and the tourbillon is intended only to compensate for one of them, its use in modern watches does not lead to a significant increase in accuracy. But as a work of engineering and watchmaking art, it is of undoubted value. The tourbillon mechanism is much more complicated to assemble and tune. Now this exquisite detail serves as a design element that emphasizes the elitism of watches. A further development of the tourbillon idea is an invention called the "central carousel". See also "tourbillon" for details.

Ultra-thin watch

Watches (manually or automatically wound mechanical, quartz) specially designed to minimize the thickness of the mechanism and, consequently, the watch itself. The thickness of the mechanism decreased as the clock evolved. The mechanism of small desktop alarm clocks in the 17th century baroque style was about 60 mm thick, while the pocket watch mechanism of the same period was over 30 mm thick. In the 18th century, these sizes decreased. The art of reducing the thickness of movements reached its highest point in the first half of the 19th century, when very flat clocks were in vogue. At that time, Swiss watchmakers produced small pocket watches and pendant watches with a movement thickness of 1.7 to 1.9 mm.

Equation of time (Eng. Equation of Time)

Difference between local mean time as shown by conventional clocks and real solar time. When evaluating this difference, the maternity and summer time shifts and the distance from the longitude of the corresponding time zone (for Moscow, this is 45 degrees east longitude) should be taken into account. Real solar time is determined by the moments of the passage of the Sun through certain points in the sky, for example, through the highest point of the Sun's orbit in the southern part of the sky. A solar day, that is, the time between two successive passages of the Sun through such a point, generally speaking, is not equal to exactly 24 hours, but varies throughout the year. This is due to the fact that the movement of the Earth around the Sun does not occur in a circular orbit and that the axis of the orbit does not coincide with the axis of rotation of the Earth. The value of the equation of time changes during the year from -14.3 to + 16.3 minutes. Some watches have an equation of time function that is implemented different ways. In Longines and Franck Muller watches, the equation of time is "linked" to the calendar, and its values ​​can be estimated for any date. The Breguet Equation of Time watch embodies the principle of continuous indication of the value of the equation of time, when only its current value is shown.

Oyster (French Oyster)

One of the most famous models by Rolex. Also: the company's patented method of double sealing the watch mechanism from external influences.

The part of a watch case to which a bracelet or strap is attached.

Moon phases

Watches with built-in calendars show the phases of the moon: full, new moon and quarters. As a rule - the phases are shown in an illustrative form with pictures of the moon in a semicircular hole - aperture. In some cases, the holes are framed with a scale for 29.5 days of the lunar calendar and star charts made specifically for the buyer's region. One of the most famous watches by Patek Philippe - "Graves" accurately reproduces a fragment of the New York starry sky, visible from the window of the owner's house.

Retainer

A lever with a rear part that retains a wheel tooth under the action of a spring.

purple gold

In fact, it is an alloy of gold and aluminum. Such gold can be "awarded" 750 samples (the gold content in the alloy is even more than 75%). Another type of purple gold is an alloy of gold and potassium. Purple jewelry alloy is exotic and beautiful. But, unfortunately, it is fragile and non-plastic. Sometimes it can be found in jewelry in the form of inserts, as if it were a precious stone and not metal.

A special device in a mechanical watch with a spring drive, in the form of a truncated cone, designed to equalize the torque transmitted from the drum of the mainspring to the main wheel system of the watch. As the winding of the spring wears out, the fusee compensates for the drop in torque by increasing the gear ratio, thus increasing the uniformity of the watch, over the entire period of operation of the movement from one winding to another.

Hezalit (plexiglass, acrylic glass)

This is a lightweight transparent plastic that tends to flex upon impact; if it beats, it does not crumble into fragments. It is also resistant to temperature fluctuations and high pressure. Therefore, hesalite is used in watches that require increased security (for example, in some Omega models). In addition, hesalite is easy to polish to get rid of scratches. Vickers hardness - about 60 VH.

Chrysolite (from other Greek χρυσός - gold and λίθος - stone)

Mineral, a transparent gem variety of the olivine mineral of the island silicate subclass, from yellow-green to dark Chartreuse, with a characteristic golden hue. Refers to gems.

Chronograph

Watch with two independent measuring systems: one shows the current time, the other measures short periods of time. In watches with analog (hand) time indication, it allows you to start the central second hand, stop, return to zero, measuring time intervals without interfering with the operation of the watch. Most hand chronographs have counters (small dials) of minutes, some have counters of hours, tenths of seconds. Digital (electronic) chronographs have a larger measurement limit, the accuracy can reach thousandths of a second. See also "chronograph" for details.

Chronometer

A highly accurate watch that has passed a series of accuracy tests and received the appropriate certificates. Chronometers run with only a few seconds of error per day when used in normal temperature ranges. See also "chronometer" for details.

A small cylinder attached to the pendulum support.

A wheel made up of a toothed disc and a cylindrical housing closed by the housing. The cylinder rotates freely on the axis and contains the main spring, which is attached to the cylinder from the outside and to the axis from its inside. The cylinder meshes with the first pinion of the clock gear; it rotates slowly, its arc of rotation changing between one ninth and one sixth of a revolution per hour.

Clock face

The dials are very different in shape, design, material, etc. Watch faces show information through numbers, divisions, or various symbols. Jumping dials are equipped with apertures in which hours, minutes and seconds appear.

Digital display

Display showing the time in the form of numbers (numbers).

Digital clock (1)

Quartz clock with digital LCD or LED time display.

Digital clock (2)

Complicated mechanical watch with one or more digital time indicators. Usually this is the so-called Jumping Hour - a watch with a "jumping" hour indicator. This clock shows only the most essential: hours and minutes. The style of the dial is simple and strict, the hour indicator window is usually located on the periphery of the dial, the large minute hand is in the center. The main difficulty that craftsmen have to face when working on models with a digital hour indication is that the change in the hour indication must occur abruptly exactly after 60 minutes. However, the movement of the minute hand must remain smooth. Jumping clocks were in vogue in the 1930s and are typical of Art Deco collections.

watch glass

Commonly used transparent plastic, mineral or sapphire glass. Very rarely, a natural gemstone is used as a watch glass (Chopard and Piaget used diamonds; Chopard - emerald; Cartier - sapphire).

Frequency of balance fluctuations

It is determined by the number of semi-oscillations of the balance wheel per hour. The balance of a mechanical watch usually makes 5 or 6 vibrations per second (i.e. 18000 or 21600 per hour). In high-frequency watches, the balance makes 7, 8 or even 10 semi-oscillations per second (ie 25200, 28800 or 36000 per hour).

Striking clock

Sonnery (French Sonnerie). Petite Sonnerie or the English chiming system is a two-voice chiming mechanism that strikes quarters of the hour. Grande Sonnerie - a clock that strikes an hour and a quarter of an hour at every quarter of an hour.

Pure gold

Very soft, easily deformed, so now it is practically not used in the manufacture of jewelry. Previously, before the revolution in Russia, wedding rings were made of pure gold. The rings were mostly thick, weighing about 8 grams, which compensated for the softness of the metal. Now an engagement ring weighs an average of 2 grams and has a width of 2-3 mm, depending on the production technology. The quality of production can be determined in a special way.

black gold

To make gold alloys black, the following technological methods are usually used:

• the surface of the jewelry is coated with a layer of black rhodium or ruthenium using a galvanic method; while the color of the coatings varies in the range from gray to black
• the surface of the jewelry is covered with a layer of amorphous carbon; This method is used in the manufacture of gold watch cases.
• black alloy can also be obtained by mixing gold (75%), cobalt (15%) and chromium (10%), followed by surface oxidation at a temperature of 700-950°C

Electro-luminescent backlight

Thanks to the electroluminescent panel that illuminates the entire dial, it is easier to read the data. Features a turn-off delay function that keeps the EL backlight on for a few more seconds after the light button is released.

Bezel - a ring around the glass, sometimes rotating. Depending on the design, the rotating bezel can be used to time a dive or time another event.

Barel is one of the names of the drum, which contains the (accumulating energy) mainspring, which is attached to it with its outer end.

Super hard, corrosion resistant ceramic. First used on the bezel of the Rolex Cosmograph Daytona Ref. 116506.

Ceramics incorporating 18 carat gold. Allows you to reproduce gold numbers smooth to the touch on a ceramic bezel. Used by the Omega brand.

Invented by the English watchmaker George Daniels (George Daniels) system of escapement of the watch mechanism. It is used in the watches of the De Ville collection produced by the Swiss company Omega. The Co-Axial escapement system has a double coaxial escape wheel and a three-pallet fork. The use of new technology gives the watch two advantages: greater durability and consistently high accuracy over time.

Controle Officiel Suisse des Chronometres is the Official Swiss Chronometer Testing Institute. Only watches that have passed this certification can be called a chronometer.

Complete Calendar

Complete Calendar (complete calendar) - a complex clock function, which is to display the date, month and day of the week. Unlike the annual and perpetual calendar, the full calendar does not take into account the different lengths of the months, so it must be manually adjusted 5 times a year - at the end of each month with less than 31 days. See also "complete calendar" for details.

The largest manufacturer of Swiss movements. The name comes from the merger of Ebauches SA and ETernA in 1932. Currently, the associations include 16 factories worldwide.

The system for adjusting the length of the hair, and therefore the period of balance fluctuation. A feature of this regulator is the ability to fine-tune the course of the clock. The regulator consists of a specially arranged thermometer pins (the gap for the balance hair is adjusted not by tedious fitting of the pins, but by simply rotating them), an eccentric screw and the actual thermometer with a V-shaped shank. By turning the screw you move the thermometer. An eccentric screw is sometimes called a micrometer screw. There are many such systems, including the swan neck, as well as various worm, rack, snail and gear wheels.

The function of instant return of the second hand of the chronograph to its original position at the touch of a button. Pressing again starts a new countdown.

Anti-magnetic alloy with low coefficient of thermal expansion. The best of the currently used materials for the production of balances.

Gyrotourbillon (Gyrotourbillon)

biaxial tourbillon, which compensates for the positional error of the movement when changing the position of the watch in space. First appeared in 2004. There are at least two varieties of two-axle turbien. In one case, a large outer ultra-light bottom bracket rotates one revolution per minute. Inside it, with a long period of time (at a speed of 1 revolution in 18.5 seconds), another (small) carriage rotates, with a "balance - spiral" assembly inside. Thus, the cross rotation of both carriages compensates for the positional error of the clock at different points in time simultaneously in two perpendicular planes. In another case, a two-axle design is also used. However, its task is to maintain a constant spatial orientation of the "balance-helix" assembly (as a rule, in the horizontal plane), regardless of the spatial orientation (any inclination in any planes) of the entire mechanism as a whole. Therefore, this design was called "gyroturbillon" by analogy with the usual scheme of suspension of gyroscopes.

Hublot engineers have created an alloy that is an alloy of magnesium and aluminum, it will be equally good for creating both a watch case and metal parts of a strap or bracelet, as well as movement parts.

Anti-shock device of the balance axis.

Liquidmetal are alloys that have an "amorphous" atomic structure, that is, they do not show different properties in different directions and do not have a definite melting point. The properties of Liquidmetal are superior to those of conventional metals. Liquidmetal has the following properties:

• high hardness
• high hardness to weight ratio
• exceeding the elastic limit
• high corrosion resistance
• high wear resistance
• unique acoustic properties

One of the results of the unique atomic structure of Liquidmetal alloys is high fluidity, which approaches the theoretical limit and is much higher than in crystalline metals and alloys. Another unique property of Liquidmetal alloys is the highest elastic limit, i.e. the ability to retain its original shape after passing through very high loads and stresses. The material is developed by Liquidmetal Technologies, Inc.

An alloy for making watch balance spirals. It has the property of temperature self-compensation, very wear-resistant, not subject to corrosion.

An alloy for making clockwork springs. It has the ability to maintain constant elasticity for decades.

An alloy of niobium and zirconium, with an oxygen content. Less sensitive to shock, basic properties are less affected by temperature changes. Resistant to magnetic fields. Blue alloy. Used to make springs in balance nodes. Used in the Rolex Cosmograph Daytona Ref. 116506.

Perpetual Calendar

The "Perpetual Calendar" indicates the correct date, day of the week, month and leap year for many years to come. In fact, the "perpetual calendar" mechanism is a complex computing device that does not require correction for many years to come.

PVD (Physical Vapor Deposition)

Currently, PVD (Physical Vapor Deposition) coating is widely used in the watch industry - superhard titanium nitride is applied to the case material in a vacuum, on top of which an ultrathin layer of gold is applied. The PVD coating has a high degree of resistance to wear and scratches, while the gilding wears off an average of 1 micron per year, depending on clothing, etc. The PVD coating technology allows you to get very thin (from 1 to 3 microns, sometimes up to 5 microns) coating layers without any impurities. IPG (Ion Plating Gold) - a method of ion deposition of gold with a substrate (intermediate hypoallergenic layer), today is the most wear-resistant gilding (IPG-coating is 2-3 times more wear-resistant than PVD-coating of the same thickness). Thickness of gilding 750°: 1-2 microns.

Rolesium alloy. Combination of 904L stainless steel and superalloy 950 platinum. Used in the manufacture of the Rolex Yacht-Master Ref. 116622.

An alloy of gold, mehndi and palladium, with a reduced gold content. Developed by Swatch Group. It has a bright red color and shine. Used by the Omega brand in production model range Constellation.

TiVan15 alloy.

An alloy of titanium and vanadium. Combines low temperature strength and high ductility with high strength at elevated temperature and low creep. Used to make watch cases.

This is a unique alloy developed by renowned chemist and engineer Ronald Winston specifically for the Harry Winston manufactory. Zalium is obtained on the basis of zirconium, surpasses titanium in strength, but has almost the same weight, hypoallergenic and anti-corrosion. Zalium has a nice gray sheen.

An alloy of titanium, niobium and aluminum. Developed by Zenith brand. Used in the manufacture of gauge bridges in the Defy series. The release of which is now discontinued.

The vocation of the watch is to inform its owner of information about the current time. But watchmakers have long gone further: if we are interested in hours and minutes in the present, why not also make visual information about the current day of the week, day of the month, month? There is no more useless watch option than a message about the current year (is it like getting lost in time?), but many watch manufacturers with imagination decided to include it in the case.

But all these innovations did not appear immediately ...

When creating a calendar, each watchmaker faced one problem: how to set up the calendar correctly if the time in a day is calculated as 24 hours exactly (which flows into exactly 365 days a year), but in reality there are more than 24 hours in a day, just like in a year - 365 days, 5 hours, 48 ​​minutes and 45 seconds. That is why the annual calendar, which is not gently interfered with, is not an easy task.

For the first time, as far as possible, it was solved back in 1345 in Strasbourg: a clock was located on the cathedral building, showing, in addition to time, the days of the week.

But they managed to adapt the calendar to small watches only in 1698. Watchmaker Daniel Jean-Richard managed to create a pocket watch with a date indicator: from the 1st to the 31st. The change of the number depended on the turn of the arrow on the time dial: 2 full turns of the hour hand (2 times at 12 o'clock) caused the number to change.

Modern clocks with a calendar exist in different types, but the basics are similar.

As a rule, such a basis is a date indicator - the simplest version of the calendar. The day of the week indicator can also be adapted to it. The principle of operation is based on the dependence of the gears of the time dial, the gears of the day and the day of the week. With a double turn of the hour hand, the day of the month mark is shifted, and a change in the divisions of the numbers of the month causes a change in the day of the week. Such a calendar, as a rule, is annual: it needs to be adjusted only on the last day of February. It is important not to translate the arrows during the date change (around 12 midnight plus / minus the hour): otherwise the dependence of the gears can lead to breakage.

The date change can occur immediately (by instantaneous shifting of numbers), or gradually (over the course of hours, the date steadily moves to the next mark). This way of displaying the date is provided by the presence of additional gears. An intermediate option is a "semi-instant" date change, which occurs within an hour and a half. It is for this type of mechanism that it is important not to carry out any manipulations with the dial 1.5 hours before midnight and in the same period after.

More complex mechanisms require adjustment 6 times a year: in February, April, June, August, September and November. Due to the different number of days in a month (30 or 31), there may be deviations in the calendar, which are taken into account in more “smart” (improved modern models) watches.

Date indicator

The date on a wristwatch can be shown in three ways:

• With the help of an arrow rotating on a dial with marks 1-31. The simplest calendar, it is also the most reliable.
• With the help of a changing number in the window - it requires extra gears: sometimes up to 60 additional parts.
• In electronic form on the scoreboard.

Clock with calendar

Adriatica A1114.2161Q - Bracelet collection. PVD coated. Quartz movement. Sapphire glass with anti-reflective coating on the inner surface, resistant to scratches. Stainless steel case and bracelet. The calendar in the form of a changing day of the month is placed in a separate window on the right.

Adriatica A1193.1213CH - Chronographs collection. Chronograph watch with stopwatch. Stopwatch. Stainless steel case with PVD coating. Genuine leather strap. Quartz movement, caliber Ronda 8040.N, movement accuracy +/-15 seconds per month. Sapphire glass with anti-reflective coating on the inner surface, resistant to scratches. The big date is displayed at the bottom of the dial. The day of the week is displayed on a separate dial at the top and has a retrograde indicator.

Reebok RC-DBP-G9-PBPB-BT - sports style watch, Di-R collection. Split chronograph. Stopwatch. Quartz movement. Durable plastic glass. Housing made of plastic. Rubber strap with buckle. The date and day of the week are displayed on a digital display above the time designation.

Wristwatches have long ceased to be a device that only shows time. Today, they add a huge number of useful and not very functions (complications), turning them into an indispensable companion of a modern person, and sometimes just into an expensive toy on the wrist.

UNIVERSAL FUNCTIONS (COMPLIFICATIONS)- those additional functions in the watch that can be useful to everyone - regardless of occupation and lifestyle.

Alarm. One of the most useful additional functions of a wrist watch, because we all most often need to wake up on time. In some models, it is possible to set several alarm settings, set an hourly signal, and also use the signal snooze.

Thermometer. A useful feature with which you will always know the air temperature. The thermometer is especially useful for travelers and people leading an active lifestyle. There are watch models with the function of measuring water temperature, which is especially important for water sports enthusiasts.

Perpetual (automatic) calendar. Perpetual calendar watches do not need to be manually adjusted to the number of days in a month. Such a calendar automatically takes into account the number of days in a month and the duration of February in a leap year, since it is programmed up to a certain year (for example, until 2099). The convenience of such a perpetual calendar is obvious.

Big Data. This function belongs to one of the most popular watch complications, as it allows you to place two enlarged date digits on the dial. The date read at a glance is a convenient thing for everyone. This complication, consisting of two discs with numbers, was invented in the 30s of the last century. It is two discs with numbers that are used in the watch, because the width of the dial ring no longer allows.

Power reserve indicator (reserve de marche) and a battery indicator (EOL). important function for those who want to change the battery in a quartz watch in time or wind up a mechanical one. The "power reserve indicator" is found on mechanical watches. It looks like an additional sector on the dial and shows the degree of winding of the mainspring of a mechanical watch. You will always know the time remaining before the clock stops - measured in hours and days.

The concept of " battery indicator» refers to quartz watches. Approximately 2 weeks before the battery is completely depleted, the second hand begins to move not every second, but once every 4 seconds and jumps forward 2 or 4 divisions at once. Thus, the energy remaining in the battery is saved, and you understand that it is time to replace it.

Magnetic resistance (magnetic resistance, antimagnet) important for both mechanical and quartz watches, because the magnetic field affects the accuracy of the watch. The magnetic lock of the wallet, the magnet in the refrigerator door, in the electric razor, speakers and other things around us every day affect the accuracy of the watch. Therefore, a watch with an anti-magnetic function is a very useful invention, especially for people who are exposed to magnetic waves at work, often travel - pass through magnetic frames at airports, and for most of us - we all go through magnetic frames in a supermarket or cinema.

Countdown timer- a device for measuring the remaining time until an event. The user sets the time after which the sound signal sounds. Such a timer will be useful for anyone who needs to take medication daily, when exercising with alternating loads, or in the kitchen for cooking.

BUSINESS FUNCTIONS (COMPLICATIONS)- additional functions in the watch, which will be especially appreciated by business people.

Second time zone (Dual Time) or GMT– function of indication of time in two time zones. With its help, you will know the time not only in your own, but also in the time zone that you need. The function is useful for those who often call abroad or go on business trips. The transition between belts occurs by turning the ring, pressing a button or rotating a special head.

World time (World Time) displays the current time in the main cities of the world. A useful thing for those who travel a lot, often calls to other cities. Unlike models with a second time zone, you do not need to select another city on the additional window, because you can see the time in all time zones at once - as a rule, the names of the main cities of the world are located on the bezel or dial. Also on the dial can be located the image of the map of the world.

Notebook. This function is used in electronic watches so that the user can create various notes, store important information(numbers of passports, phones, credit cards). The number and volume of entries is limited by the built-in memory electronic block. Notebook watch models can be found in Casio Data Bank, G-Shock and Baby-G watches.

Slide rule. Allows not only to perform simple operations of multiplication and division, but also to calculate the exchange rate, calculate flight time, fuel consumption, convert nautical miles to kilometers, etc.

SPORTS FEATURES (COMPLICATED)– excellent assistants for sportsmen or fans of active tourism. Watch manufacturers have developed many sports features to make life easier for sports lovers.

Tachymetric scale (tachymeter). It is located on the bezel or watch dial in the form of a scale with numbers indicating the magnitude of the speed. Used to calculate the speed of passing a distance over time. The reading is carried out using the second hand: when the tachymeter starts, it starts moving in a circle, stopping near the number indicating the speed of movement.

Chronograph. It can be used to measure short periods of time. Most often, the chronograph hands are located on separate small dials. The chronograph can be operated either using the crown (in simple models) or using separate buttons (one button - to start and stop the counter, the second - to reset it). The central seconds hand is usually used as the second hand of a chronograph.

Split Chronograph. Complicated chronograph with two second hands, one of them can be temporarily stopped to record the intermediate measurement result.

Chronometer. A mechanical watch with a particularly accurate rate (the error is ± 5 seconds per day, while ordinary watches have ± 20 seconds), which have passed a series of tests for accuracy and received the appropriate certificates. The most famous certificate is from the Swiss Institute of Chronometry COSC (Controle Officiel Suisse des Chronometres). Also, “chronometers” (from other Greek “I measure time”) are sometimes called any clock, using this word as a synonym for clocks.

Stopwatch. A device that measures time to the nearest second or even a fraction of a second. The stopwatch can be started and stopped arbitrarily. Indispensable in most sports.

Altimeter (altimeter). Used to measure height. An altimeter watch has a built-in pressure sensor that uses this reading to determine altitude. An ideal function for conquerors of peaks - mountaineers, rock climbers. In some models, the indications of the final and initial ascent points, the difference between them are saved.

Barometer. A special sensor measures atmospheric pressure and displays this information on the screen using icons. Now you will know in advance about weather changes, even far from civilization.

Compass. To navigate the terrain, it is not necessary to put a compass in your hiking backpack, because there are wristwatches in which it is already built in! Wherever you go, the compass in your watch will always point you in the right direction. The compass in the watch can be digital or classic magnetic.

Angler/hunter schedule. A scale that determines the suitability of a date and time for fishing. Probabilistic determination of fish activity based on the entered coordinates (latitude and longitude) of your location. If it's time for fishing, fish or paws are displayed on the screen.

yacht timer designed for participants in regattas and races. This is a countdown timer that activates at a certain point in time and gives an alarm if there are left to the end: 10, 5, 4, 3, 2, 1 minutes, and then in a second version: 40, 30, 20, 10, 5 , 4, 3, 2, 1. There are models with an auto-repeat yacht timer.

Pedometer- a motion sensor in the watch, which calculates the distance traveled when walking by counting the number of steps. Ideal for athletes and anyone who loves to run.

heart rate monitor measures the pulse (heart rate). When the watch case contacts your hand, a special sensor reads the pulse beats and displays the average value on the display. A very convenient feature for people involved in sports to control physical activity and body condition. Always tells you when to slow down. It is also used by doctors in extreme conditions, when you need to quickly find out the pulse readings.

FEATURES SPECIFIC TO A PREMIUM WATCH

Autoquartz movement- combination of automatic and quartz movement. As a result of everyday hand movements, the generator charges the watch's mini-battery. The energy of a fully charged battery is enough for 50-100 days of uninterrupted operation of the watch.

Automatic movement- Watches with this mechanism wind up automatically. In simple mechanical watches, the spring is wound by turning the crown. The self-winding system almost eliminates this need. A metal weight in the form of a sector, fixed on the axis, rotates with any movements of the watch in space, winding the spring. The load must be heavy enough to overcome the resistance of the spring. To avoid rewinding and breakage of the mechanism, a special protective clutch is installed, which slips when the spring is wound up enough.

Automatic adjustment of movement steadiness- a term denoting the automatic adjustment of the position of the anchor relative to the escape wheel in the event of oscillations of the pendulum with an increased amplitude. Due to the exact selection of friction between the anchor, the anchor axis and the additional disk, it is possible to achieve a uniform tick-tock sound after the end of the period of oscillation of the pendulum with an increased amplitude.

Automatic night delivery sound and melody (Automatic night delivery sound)- a function on clocks with a strike, repeaters, or carillons, which allows you to turn off the sound notification of the time for the night period. It is an additional mechanism that interrupts a melody or battle.

Automatic switching melodies (Automatic tune changer)- an additional function in repeater watches or carillons that changes the playing melody after every hour.

Academy of Independent Watch Manufacturers (Académie Horlogère des Créateurs Indépendants (AHCI)- a society founded by Svend Andersen (Svend Andersen) and Vincent Calabrese (Vincent Calabrese) in 1985. The goal of this society was the desire to revive the traditional craft art of watchmaking, equivalent to the industrial production of mechanical watches. The community is located in Wichtrach in the canton of Bern. AHCI is an international organization and currently has 36 members and 5 candidates from more than 12 different countries, which make a wide variety of types of mechanical watches (wrist, pocket, table, musical, and pendulum clocks)

diamond- crystallized carbon, the hardest substance in the world. Subsequently, a special cut acquires a unique brilliance and is called a diamond. Often used to decorate wristwatches of the upper price category.

Altimeter- a device that determines the height above sea level due to changes in atmospheric pressure. The level of atmospheric pressure affects the accuracy of the watch. With an increase in altitude and a decrease in pressure, the air resistance in the watch case decreases, the frequency of oscillations increases, and the watch begins to work ahead of time, “hurry”.

Shock absorbers- parts of the anti-shock system of the clockwork, designed to protect the axes of the parts of the mechanism from breakage under impulse loads.

Analog Display- Display, time using the relative movement of the marker and plate (usually hands and dial).

Analogue watch- watches in which the time indication is carried out with the help of arrows.

Anchor mechanism (anchor) (Escapement)- part of the clockwork, consisting of an escape wheel, a fork and a balance, and converting the energy of the mainspring into impulses transmitted to the balance to maintain a strictly defined period of oscillation, which is necessary for the uniform rotation of the gear mechanism.

Antimagnetic properties (Antimagnetic)- A type of watch that is not subject to magnetic influence.

Nonmagnetic watch- watches in which a special alloy is used to make the case, which protects the watch from magnetization.

Aperture- a small window in the dial, which shows the current date, day of the week, etc.

Applique- numbers or symbols carved from metal and attached to the dial.

Astronomical watch- watches with additional indications on the dial, showing the phases of the moon, the time of sunrise and sunset, or the movement pattern of the planets and constellations.

Atmosphere (atm.)- unit of pressure. Often used in the watch industry to indicate the level of water resistance of a watch. 1 atmosphere (1 ATM) corresponds to a depth of 10.33 meters.

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