history of watches - wikiwand

8/17/2019 History of Watches - Wikiwand

1/12

3.4.2016. History of watches - Wikiwand

https://www.wikiwand.com/en/History_of_watches 1/12

EN

+

History of watches

Connected to:

Watch Balance wheel Mainspring

From Wikipedia, the free encyclopedia

https://www.wikiwand.com/en/Watchhttps://www.wikiwand.com/en/Mainspringhttps://www.wikiwand.com/en/Balance_wheelhttps://www.wikiwand.com/en/Watch


2/12



Portable drum watch with sundial. The 24-hour dial is marked in Roman numerals on the outer band

and in Arabic numerals on the inner one.[1]

Most of the 500 year history of watches consisted of the development of the mechanical watch.Watches evolved from portable spring driven clocks, which first appeared in 15th-century Europe.Portable timepieces were made possible by the invention of the mainspring in the early 15th century.

Nuremberg clockmaker Peter Henlein (or Henle or Hele) (1485-1542) is often credited as the inventor

of the watch.[2][3] He was one of the first German craftsman who made "clock-watches" (taschenuhr ),ornamental timepieces worn as pendants, which were the first timepieces to be worn on the body. His

fame is based on a passage by Johann Cochläus in 1511:[4][5]

Peter Hele, still a young man, fashions works which even the most learnedmathematicians admire. He shapes many-wheeled clocks out of small bits of iron, whichrun and chime the hours without weights for forty hours, whether carried at the breast or in a handbag

However, other German clockmakers were creating miniature timepieces during this period, and there

is no evidence Henlein was the first.[3][4]

The watch which developed from the 16th century to the mid 20th century was a mechanical device, powered by winding a mainspring which turned gears and then moved the hands, and kept time with arotating balance wheel. The invention of the quartz watch in the 1960s, which ran on electricity andkept time with a vibrating quartz crystal, proved a radical departure for the industry. During the 1980squartz watches took over the market from mechanical watches, an event referred to as the " quartzcrisis". Although mechanical watches still sell at the high end of the market, the vast majority of watches now have quartz movements.

One account of the origin of the word "watch" is that it came from the Old English word woecce

which meant "watchman", because it was used by town watchmen to keep track of their shifts. [6]

Another says that the term came from 17th century sailors, who used the new mechanisms to time the

length of their shipboard watches (duty shifts).[7]

Clock-watches

https://www.wikiwand.com/en/Old_Englishhttps://www.wikiwand.com/en/Quartz_crisishttps://www.wikiwand.com/en/Crystal_oscillatorhttps://www.wikiwand.com/en/Quartz_watchhttps://www.wikiwand.com/en/Balance_wheelhttps://www.wikiwand.com/en/Mainspringhttps://www.wikiwand.com/en/Johann_Cochl%C3%A4ushttps://www.wikiwand.com/en/Peter_Henleinhttps://www.wikiwand.com/en/Nuremberghttps://www.wikiwand.com/en/Mainspringhttps://www.wikiwand.com/en/Watch


3/12



The earliest dated watch known, from 1530

The first timepieces to be worn, made in the 16th century in the German cities of Nuremberg and

Augsburg, were transitional in size between clocks and watches.[8] These 'clock-watches' werefastened to clothing or worn on a chain around the neck. They were heavy drum shaped cylindrical

brass boxes several inches in diameter, engraved and ornamented. They had only an hour hand. Theface was not covered with glass, but usually had a hinged brass cover, often decoratively pierced withgrillwork so the time could be read without opening. The movement was made of iron or steel andheld together with tapered pins and wedges, until screws began to be used after 1550. Many of themovements included striking or alarm mechanisms. They usually had to be wound twice a day. The

shape later evolved into a rounded form; these were later called Nuremberg eggs. Still later in thecentury there was a trend for unusually shaped watches, and clock-watches shaped like books,animals, fruit, stars, flowers, insects, crosses, and even skulls (Death's head watches) were made.

These early clock-watches were not worn to tell the time. The accuracy of their verge and foliotmovements was so poor, with errors of perhaps several hours per day, that they were practicallyuseless. They were made as jewelry and novelties for the nobility, valued for their fine ornamentation,

unusual shape, or intriguing mechanism, and accurate timekeeping was of very minor importance.[9]

Pocketwatches

Styles changed in the 17th century and men began to wear watches in pockets instead of as pendants

(the woman's watch remained a pendant into the 20th century).[10] This is said to have occurred in

1675 when Charles II of England introduced waistcoats.[11] To fit in pockets, their shape evolved intothe typical pocketwatch shape, rounded and flattened with no sharp edges. Glass was used to cover theface beginning around 1610. Watch fobs began to be used, the name originating from the Germanword fuppe, a small pocket. The watch was wound and also set by opening the back and fitting a keyto a square arbor, and turning it.

The timekeeping mechanism in these early pocketwatches was the same one used in clocks, inventedin the 13th century; the verge escapement which drove a foliot, a dumbbell shaped bar with weightson the ends, to oscillate back and forth. However, the mainspring introduced a source of error not

present in weight-powered clocks. The force provided by a spring is not constant, but decreases as thespring unwinds. The rate of all timekeeping mechanisms is affected by changes in their drive force,

but the primitive verge and foliot mechanism was especially sensitive to these changes, so earlywatches slowed down during their running period as the mainspring ran down. This problem, calledlack of isochronism, plagued mechanical watches throughout their history.

Efforts to improve the accuracy of watches prior to 1657 focused on evening out the steep torque

curve of the mainspring.[10] Two devices to do this had appeared in the first clock-watches: the stackfreed and the fusee. The stackfreed, a spring-loaded cam on the mainspring shaft, added a lot of friction and was abandoned after about a century. The fusee was a much more lasting idea. A curvingconical pulley with a chain wrapped around it attached to the mainspring barrel, it changed the

https://www.wikiwand.com/en/Barrelhttps://www.wikiwand.com/en/Pulleyhttps://www.wikiwand.com/en/Camhttps://www.wikiwand.com/en/Fusee_(horology)https://www.wikiwand.com/en/Stackfreedhttps://www.wikiwand.com/en/Torquehttps://www.wikiwand.com/en/Isochronoushttps://www.wikiwand.com/en/Verge_and_foliothttps://www.wikiwand.com/en/Spring_(device)https://www.wikiwand.com/en/Mainspringhttps://www.wikiwand.com/en/Oscillatehttps://www.wikiwand.com/en/Dumbbellhttps://www.wikiwand.com/en/Verge_escapementhttps://www.wikiwand.com/en/Verge_escapementhttps://www.wikiwand.com/en/Watch_fobhttps://www.wikiwand.com/en/Pocketwatchhttps://www.wikiwand.com/en/Waistcoathttps://www.wikiwand.com/en/Charles_II_of_Englandhttps://www.wikiwand.com/en/Pendanthttps://www.wikiwand.com/en/Nobilityhttps://www.wikiwand.com/en/Jewelryhttps://www.wikiwand.com/en/Verge_and_foliothttps://www.wikiwand.com/en/Nuremberg_eggshttps://www.wikiwand.com/en/Alarm_clockhttps://www.wikiwand.com/en/Striking_clockhttps://www.wikiwand.com/en/Clock_facehttps://www.wikiwand.com/en/Augsburghttps://www.wikiwand.com/en/Nuremberg


4/12



leverage as the spring unwound, equalizing the drive force. Fusees became standard in all watches,and were used until the early 19th century. The foliot was also gradually replaced with the balancewheel, which had a higher moment of inertia for its size, allowing better timekeeping.

Balance spring

Drawing of one of his first balance springs, attached to a balance wheel, by Christiaan Huygens,inventor of the balance spring, published in his letter in the Journal des Sçavants of 25 February 1675

A great leap forward in accuracy occurred in 1657 with the addition of the balance spring to the balance wheel, an invention disputed both at the time and ever since between Robert Hooke andChristiaan Huygens. Prior to this, the only force limiting the back and forth motion of the balancewheel under the force of the escapement was the wheel's inertia. This caused the wheel's period to bevery sensitive to the force of the mainspring. The balance spring made the balance wheel a harmonicoscillator , with a natural 'beat' resistant to disturbances. This increased watches' accuracy enormously,

reducing error from perhaps several hours per day[12] to perhaps 10 minutes per day,[13] resulting inthe addition of the minute hand to the face from around 1680 in Britain and 1700 in France. Theincreased accuracy of the balance wheel focused attention on errors caused by other parts of the

movement, igniting a two century wave of watchmaking innovation.

The first thing to be improved was the escapement. The verge escapement was replaced in qualitywatches by the cylinder escapement, invented by Thomas Tompion in 1695 and further developed byGeorge Graham in the 1720s. In Britain a few quality watches went to the duplex escapement,invented by Jean Baptiste Dutertre in 1724. The advantage of these escapements was that they onlygave the balance wheel a short push in the middle of its swing, leaving it 'detached' from theescapement to swing back and forth undisturbed during most of its cycle.

During the same period, improvements in manufacturing such as the tooth-cutting machine devised byRobert Hooke allowed some increase in the volume of watch production, although finishing andassembling was still done by hand until well into the 19th century.

Temperature compensation and chronometers

Diagram of Earnshaw's standard chronometer detent escapement

https://www.wikiwand.com/en/Robert_Hookehttps://www.wikiwand.com/en/Escapement#Duplex_escapementhttps://www.wikiwand.com/en/George_Graham_(clockmaker)https://www.wikiwand.com/en/Thomas_Tompionhttps://www.wikiwand.com/en/Escapement#Cylinder_escapementhttps://www.wikiwand.com/en/Escapementhttps://www.wikiwand.com/en/Movement_(clockwork)https://www.wikiwand.com/en/Clock_facehttps://www.wikiwand.com/en/Harmonic_oscillatorhttps://www.wikiwand.com/en/Inertiahttps://www.wikiwand.com/en/Christiaan_Huygenshttps://www.wikiwand.com/en/Robert_Hookehttps://www.wikiwand.com/en/Balance_springhttps://www.wikiwand.com/en/Christiaan_Huygenshttps://www.wikiwand.com/en/Moment_of_inertiahttps://www.wikiwand.com/en/Balance_wheel


5/12



The Enlightenment view of watches as scientific instruments brought rapid advances to their mechanisms. The development during this period of accurate marine chronometers to determinelongitude during sea voyages produced many technological advances that were later used in watches.It was found that a major cause of error in balance wheel timepieces was changes in elasticity of the

balance spring with temperature changes. This problem was solved by the bimetallic temperaturecompensated balance wheel invented in 1765 by Pierre Le Roy and improved by Thomas Earnshaw.This type of balance wheel had two semicircular arms made of a bimetallic construction. If thetemperature rose, the arms bent inward slightly, causing the balance wheel to rotate faster back and

forth, compensating for the slowing due to the weaker balance spring. This system, which couldreduce temperature induced error to a few seconds per day, gradually began to be used in watchesover the next hundred years.

The going barrel invented in 1760 by Jean-Antoine Lépine provided a more constant drive force over the watch's running period, and its adoption in the 19th century made the fusee obsolete. Complicated

pocket chronometers and astronomical watches with many hands and functions were made during this period.

Lever escapement

Thomas Mudge, inventor of the lever escapement

The lever escapement, invented by Thomas Mudge in 1759 and improved by Josiah Emery in 1785,gradually came into use from about 1800 onwards, chiefly in Britain; it was also adopted byAbraham-Louis Breguet, but Swiss watchmakers (who by now were the chief suppliers of watches tomost of Europe) mostly adhered to the cylinder until the 1860s. By about 1900, however, the lever

was used in almost every watch made. In this escapement the escape wheel pushed on a T shaped'lever', which was unlocked as the balance wheel swung through its center position and gave the wheela brief push before releasing it. The advantages of the lever was that it allowed the balance wheel toswing completely free during most of its cycle; due to 'locking' and 'draw' its action was very precise;and it was self-starting, so if the balance wheel was stopped by a jar it would start again.

Jewel bearings, introduced in 1702 by Nicolas Fatio de Duillier in England, also came into use for quality watches during this period. Watches of this period are characterised by their thinness. Newinnovations, such as the cylinder and lever escapements, allowed watches to become much thinner than they had previously been. This caused a change in style. The thick pocketwatches based on the

verge movement went out of fashion and were only worn by the poor, and were derisively referred toas "onions" and "turnips".

Mass production

https://www.wikiwand.com/en/Nicolas_Fatio_de_Duillierhttps://www.wikiwand.com/en/Jewel_bearinghttps://www.wikiwand.com/en/Switzerlandhttps://www.wikiwand.com/en/Abraham-Louis_Breguethttps://www.wikiwand.com/en/Thomas_Mudge_(horologist)https://www.wikiwand.com/en/Lever_escapementhttps://www.wikiwand.com/en/Lever_escapementhttps://www.wikiwand.com/en/Thomas_Mudge_(horologist)https://www.wikiwand.com/en/Fusee_(horology)https://www.wikiwand.com/en/Jean-Antoine_L%C3%A9pinehttps://www.wikiwand.com/en/Going_barrelhttps://www.wikiwand.com/en/Bimetallic_striphttps://www.wikiwand.com/en/Thomas_Earnshawhttps://www.wikiwand.com/en/Pierre_Le_Royhttps://www.wikiwand.com/en/Balance_wheelhttps://www.wikiwand.com/en/Balance_springhttps://www.wikiwand.com/en/Elasticity_(physics)https://www.wikiwand.com/en/Longitudehttps://www.wikiwand.com/en/Marine_chronometerhttps://www.wikiwand.com/en/Age_of_Enlightenment


6/12



At Vacheron Constantin, Geneva, Georges-Auguste Leschot (1800–1884), pioneered the field of

interchangeability in clockmaking by the invention of various machine tools.[14] In 1830 he designedan anchor escapement, which his student, Antoine Léchaud, later mass-produced. He also invented a

pantograph, allowing some degree of standardisation and interchangeability of parts on watches fittedwith the same calibre.

The British had predominated in watch manufacture for much of the 17th and 18th centuries, but

maintained a system of production that was geared towards high quality products for the elite.[15]

Although there was an attempt to modernise clock manufacture with mass production techniques andthe application of duplicating tools and machinery by the British Watch Company in 1843, it was inthe United States that this system took off. Aaron Lufkin Dennison started a factory in 1851 inMassachusetts that used interchangeable parts, and by 1861 was running a successful enterprise

incorporated as the Waltham Watch Company.[16]

The railroads' stringent requirements for accurate watches to safely schedule trains droveimprovements in accuracy. The engineer Webb C. Ball, established around 1891 the first precisionstandards and a reliable timepiece inspection system for Railroad chronometers. Temperaturecompensated balance wheels began to be widely used in watches during this period, and jewel

bearings became almost universal. Techniques for adjusting the balance spring for isochronism and positional errors discovered by Abraham-Louis Breguet, M. Phillips, and L. Lossier were adopted.The first international watch precision contest took place in 1876, during the International CentennialExposition in Philadelphia (the winning four top watches, which outclassed all competitors, had beenrandomly selected out of the mass production line), on display was also the first fully automatic screwmaking machine. By 1900, with these advances, the accuracy of quality watches, properly adjusted,

topped out at a few seconds per day.[17]

The American clock industry, with scores of companies located in Connecticut's Naugatuck Valley,

was producing millions of clocks, earning the region the nickname, "Switzerland of America".[18] TheWaterbury Clock Company was one of the largest producers for both domestic sales and export,

primarily to Europe.[19] Today its successor, Timex Group USA, Inc. is the only remaining watchcompany in the region.

From about 1860, key winding was replaced by keyless winding, where the watch was wound byturning the crown. The pin pallet escapement, an inexpensive version of the lever escapementinvented in 1876 by Georges Frederic Roskopf was used in cheap mass-produced watches, whichallowed ordinary workers to own a watch for the first time; other cheap watches used a simplifiedversion of the duplex escapement, developed by Daniel Buck in the 1870s.

During the 20th century, the mechanical design of the watch became standardized, and advances weremade in materials, tolerances, and production methods. The bimetallic temperature compensated

balance wheel was made obsolete by the discovery of low-thermal-coefficient alloys invar andelinvar . A balance wheel of invar with a spring of elinvar was almost unaffected by temperaturechanges, so it replaced the complicated temperature compensated balance. The discovery in 1903 of a

process to produce artificial sapphire made jewelling cheap. Bridge construction superseded 3/4 plateconstruction.

Wristwatches

https://www.wikiwand.com/en/Jewel_bearinghttps://www.wikiwand.com/en/Sapphirehttps://www.wikiwand.com/en/Elinvarhttps://www.wikiwand.com/en/Invarhttps://www.wikiwand.com/en/Daniel_Buckhttps://www.wikiwand.com/en/Dollar_watchhttps://www.wikiwand.com/en/Georges_Frederic_Roskopfhttps://www.wikiwand.com/en/Pin_pallet_escapementhttps://www.wikiwand.com/en/Keyless_workhttps://www.wikiwand.com/en/Timex_Group_USA#Waterbury_Clock_Company_.281854.E2.80.931944.29https://www.wikiwand.com/en/Philadelphiahttps://www.wikiwand.com/en/Centennial_Expositionhttps://www.wikiwand.com/en/Abraham-Louis_Breguethttps://www.wikiwand.com/en/Jewel_bearinghttps://www.wikiwand.com/en/Railroad_chronometershttps://www.wikiwand.com/en/Webb_C._Ballhttps://www.wikiwand.com/en/Railroadhttps://www.wikiwand.com/en/Waltham_Watch_Companyhttps://www.wikiwand.com/en/Interchangeable_partshttps://www.wikiwand.com/en/Massachusettshttps://www.wikiwand.com/en/Aaron_Lufkin_Dennisonhttps://www.wikiwand.com/en/United_Stateshttps://www.wikiwand.com/en/Mass_productionhttps://www.wikiwand.com/en/Pantograph


7/12



Mappin & Webb's wristwatch, advertised as having been in production since 1898

Some people say the world's first wristwatch was created by Abraham-Louis Breguet for Caroline

Murat, Queen of Naples, in 1810.[20][21][22][23][24]

The concept of the wristwatch goes back to the production of the very earliest watches in the 16thcentury. Elizabeth I of England received a wristwatch from Robert Dudley in 1571, described as anarm watch. From the beginning, wristwatches were almost exclusively worn by women, while menused pocketwatches up until the early 20th century. This was not just a matter of fashion or prejudice;watches of the time were notoriously prone to fouling from exposure to the elements, and could onlyreliably be kept safe from harm if carried securely in the pocket. When the waistcoat was introducedas a manly fashion at the court of Charles II in the 17th century, the pocket watch was tucked into its

pocket. Prince Albert, the consort to Queen Victoria, introduced the 'Albert chain' accessory, designed

to secure the pocket watch to the man's outergarment by way of a clip. By the mid nineteenth century,most watchmakers produced a range of wristwatches, often marketed as bracelets, for women.[25]

Wristwatches were first worn by military men towards the end of the nineteenth century, when theimportance of synchronizing maneuvres during war without potentially revealing the plan to theenemy through signalling was increasingly recognized. It was clear that using pocket watches while inthe heat of battle or while mounted on a horse was impractical, so officers began to strap the watchesto their wrist. The Garstin Company of London patented a 'Watch Wristlet' design in 1893, althoughthey were probably producing similar designs from the 1880s. Clearly, a market for men'swristwatches was coming into being at the time. Officers in the British Army began using

wristwatches during colonial military campaigns in the 1880s, such as during the Anglo-Burma War of 1885.[25]

During the Boer War , the importance of coordinating troop movements and synchronizing attacksagainst the highly mobile Boer insurgents was paramount, and the use of wristwatches subsequently

became widespread among the officer class. The company Mappin & Webb began production of their successful 'campaign watch' for soldiers during the campaign at the Sudan in 1898 and ramped up

production for the Boer War a few years later.[25]

https://www.wikiwand.com/en/Battle_of_Omdurmanhttps://www.wikiwand.com/en/Mappin_%26_Webbhttps://www.wikiwand.com/en/Boer_Warhttps://www.wikiwand.com/en/Third_Anglo-Burmese_Warhttps://www.wikiwand.com/en/British_Armyhttps://www.wikiwand.com/en/Londonhttps://www.wikiwand.com/en/Bracelethttps://www.wikiwand.com/en/Queen_Victoriahttps://www.wikiwand.com/en/Prince_Albert_Victor,_Duke_of_Clarence_and_Avondalehttps://www.wikiwand.com/en/Charles_II_of_Englandhttps://www.wikiwand.com/en/Waistcoathttps://www.wikiwand.com/en/Robert_Dudley,_1st_Earl_of_Leicesterhttps://www.wikiwand.com/en/Elizabeth_Ihttps://www.wikiwand.com/en/Caroline_Murathttps://www.wikiwand.com/en/Abraham-Louis_Breguethttps://www.wikiwand.com/en/Mappin_%26_Webb


8/12



Planning map for an Allied creeping barrage at Passchendaele - a tactic that required precisesynchronisation between the artillery and infantry

These early models were essentially standard pocketwatches fitted to a leather strap, but by the early20th century, manufacturers began producing purpose-built wristwatches. The Swiss company, Dimier Frères & Cie patented a wristwatch design with the now standard wire lugs in 1903. In 1904, AlbertoSantos-Dumont, an early aviator, asked his friend, a French watchmaker called Louis Cartier , to

design a watch that could be useful during his flights.[26] Hans Wilsdorf moved to London in 1905

and set up his own business with his brother-in-law Alfred Davis, Wilsdorf & Davis, providing qualitytimepieces at affordable prices - the company later became Rolex.[27] Wilsdorf was an early convertto the wristwatch, and contracted the Swiss firm Aegler to produce a line of wristwatches. His Rolexwristwatch of 1910 became the first such watch to receive certification as a chronometer in

Switzerland and it went on to win an award in 1914 from Kew Observatory in Greenwich.[28]

The impact of the First World War dramatically shifted public perceptions on the propriety of theman's wristwatch, and opened up a mass market in the post-war era. The creeping barrage artillerytactic, developed during the War, required precise synchronization between the artillery gunners andthe infantry advancing behind the barrage. Service watches produced during the War were specially

designed for the rigours of trench warfare, with luminous dials and unbreakable glass. Wristwatcheswere also found to be needed in the air as much as on the ground: military pilots found them moreconvenient than pocket watches for the same reasons as Santos-Dumont had. The British War

Department began issuing wristwatches to combatants from 1917.[29]

A Cortébert wristwatch from the 1920s.

The company H. Williamson Ltd., based in Coventry, was one of the first to capitalize on thisopportunity. During the company's 1916 AGM it was noted that "...the public is buying the practicalthings of life. Nobody can truthfully contend that the watch is a luxury. It is said that one soldier inevery four wears a wristlet watch, and the other three mean to get one as soon as they can." By the end

of the War, almost all enlisted men wore a wristwatch, and after they were demobilized, the fashionsoon caught on - the British Horological Journal wrote in 1917 that "...the wristlet watch was littleused by the sterner sex before the war, but now is seen on the wrist of nearly every man in uniformand of many men in civilian attire." By 1930, the ratio of wrist- to pocketwatches was 50 to 1. Thefirst successful self-winding system was invented by John Harwood in 1923. In 1961 the first

https://www.wikiwand.com/en/John_Harwood_(watchmaker)https://www.wikiwand.com/en/Self-winding_watchhttps://www.wikiwand.com/en/British_Horological_Institutehttps://www.wikiwand.com/en/Annual_general_meetinghttps://www.wikiwand.com/en/Coventryhttps://www.wikiwand.com/en/War_Officehttps://www.wikiwand.com/en/Trench_warfarehttps://www.wikiwand.com/en/Creeping_barragehttps://www.wikiwand.com/en/First_World_Warhttps://www.wikiwand.com/en/Greenwichhttps://www.wikiwand.com/en/Kew_Observatoryhttps://www.wikiwand.com/en/Rolexhttps://www.wikiwand.com/en/Hans_Wilsdorfhttps://www.wikiwand.com/en/Louis_Cartierhttps://www.wikiwand.com/en/Watchmakerhttps://www.wikiwand.com/en/Alberto_Santos-Dumonthttps://www.wikiwand.com/en/Battle_of_Passchendaele


9/12



wristwatch traveled to space, it was Russian.

Electric watches

See also: Electric watch

The first generation electric-powered watches came out during the 1950s. These kept time with a balance wheel powered by a solenoid, or in a few advanced watches that foreshadowed the quartzwatch, by a steel tuning fork vibrating at 360 Hz, powered by a solenoid driven by a transistor oscillator circuit. The hands were still moved mechanically by a wheel train. In mechanical watchesthe self winding mechanism, shockproof balance pivots, and break resistant 'white metal' mainsprings

became standard. The jewel craze caused 'jewel inflation' and watches with up to 100 jewels were produced.

Quartz watches

See also: Quartz crisis

The first Swiss quartz clock, made after WW II

The introduction of the quartz watch in 1969 was a revolutionary improvement in watch technology.[30] In place of a balance wheel which oscillated at 5 beats per second, it used a quartz crystalresonator which vibrated at 8,192 Hz, driven by a battery powered oscillator circuit. In place of awheel train to add up the beats into seconds, minutes, and hours, it used digital counters. The higher Qfactor of the resonator, along with quartz's low temperature coefficient, resulted in better accuracythan the best mechanical watches, while the elimination of all moving parts made the watch moreshock-resistant and eliminated the need for periodic cleaning. The first digital electronic watch withan LED display was developed in 1970. In 1974 the Omega Marine Chronometer was introduced, the

first wrist watch to hold Marine Chronometer certification and accurate to 12 seconds per year.

Accuracy increased with the frequency of the crystal used, but so did power consumption. So the firstgeneration watches had low frequencies of a few kilohertz, limiting their accuracy. The power savinguse of CMOS logic and LCD displays in the 2nd generation increased battery life and allowed the

https://www.wikiwand.com/en/LCD_displayhttps://www.wikiwand.com/en/CMOShttps://www.wikiwand.com/en/Kilohertzhttps://www.wikiwand.com/en/Omega_Marine_Chronometerhttps://www.wikiwand.com/en/Q_factorhttps://www.wikiwand.com/en/Digital_counterhttps://www.wikiwand.com/en/Wheel_train_(horology)https://www.wikiwand.com/en/Electronic_oscillatorhttps://www.wikiwand.com/en/Resonatorhttps://www.wikiwand.com/en/Crystal_oscillatorhttps://www.wikiwand.com/en/Quartz_watchhttps://www.wikiwand.com/en/Quartz_crisishttps://www.wikiwand.com/en/Mechanical_watch#.27Jewel_inflation.27https://www.wikiwand.com/en/Mainspringhttps://www.wikiwand.com/en/Self-winding_watchhttps://www.wikiwand.com/en/Wheel_train_(horology)https://www.wikiwand.com/en/Electronic_oscillatorhttps://www.wikiwand.com/en/Hertzhttps://www.wikiwand.com/en/Tuning_forkhttps://www.wikiwand.com/en/Quartz_watchhttps://www.wikiwand.com/en/Solenoidhttps://www.wikiwand.com/en/Electric_watch


10/12



crystal frequency to be increased to 32,768 Hz resulting in accuracy of 5–10 seconds per month. Bythe 1980s, quartz watches had taken over most of the watch market from the mechanical watchindustry. This upheaval, which saw all watch manufacturing except luxury mechanical watches moveto the Far East, is referred to in the industry as the "quartz crisis".

Radio controlled

In 1990, Junghans offered the first radio-controlled wristwatch, the MEGA 1. In this type, the watch'squartz oscillator is set to the correct time daily by coded radio time signals broadcast by government-operated time stations such as WWVH, received by a radio receiver in the watch. This allows thewatch to have the same long-term accuracy as the atomic clocks which control the time signals.Recent models are capable of receiving synchronization signals from various time stations worldwide.

Smartwatch

This section requires expansion. (December 2013)

Main article: Smartwatch

See also

Patek Philippe

BreitlingFortis Uhren AGIWCLonginesRaketaHistory of timekeeping devicesZeno-Watch BaselHorology

References1. ^ "Portable Drum Watch" . The Walters Art Museum.2. ^ Carlisle, Rodney P. (2004). Scientific American Inventions and Discoveries. USA: John Wiley

& Sons. p. 143. ISBN 0471244104.

3. ^ a b Usher, Abbot Payson (1988). A History of Mechanical Inventions. Courier Dover. p. 305. ISBN 0-486-25593-X .

4. ^ a b Dohrn-van Rossum, Gerhard; Thomas Dunlap (1996). History of the Hour: Clocks and Modern Temporal Orders. USA: Univ. of Chicago Press. p. 121. ISBN 0-226-15510-2.

5. ^ From Cosmographia Pomponii Melae, 1511

6. ^ "Watch" . The New Encyclopaedia Britannica, 15th Ed. 4. Encyclopaedia Britannica, Inc.1983. pp. 746–747. ISBN 085229400X . Retrieved June 3, 2012.

7. ^ Haven, Kendall F. (2006). 100 Greatest Science Inventions of All Time. Libraries Unlimited. p. 65. ISBN 1591582644.

8. ^ Milham, Willis I. (1945). Time and Timekeepers. New York: MacMillan. pp. 133–137. ISBN 0-

https://www.wikiwand.com/en/Special:BookSources/0-7808-0008-7https://www.wikiwand.com/en/International_Standard_Book_Numberhttps://www.wikiwand.com/en/Special:BookSources/1591582644https://www.wikiwand.com/en/International_Standard_Book_Numberhttp://books.google.com/?id=0gBwjLTUzEMC&pg=PA65&dq=sailor+watch+clock+henlein#v=onepage&q=sailor%20watch%20clock%20henlein&f=falsehttps://www.wikiwand.com/en/Special:BookSources/085229400Xhttps://www.wikiwand.com/en/International_Standard_Book_Numberhttp://books.google.com/?id=7iZqYfRWH_0C&q=watchmen+watch+clock+henlein&dq=watchmen+watch+clock+henleinhttps://www.wikiwand.com/en/Special:BookSources/0-226-15510-2https://www.wikiwand.com/en/International_Standard_Book_Numberhttp://books.google.com/?id=9Za4jdBEVB4Chttps://www.wikiwand.com/en/Special:BookSources/0-486-25593-Xhttps://www.wikiwand.com/en/International_Standard_Book_Numberhttp://books.google.com/books?id=xuDDqqa8FlwC&pg=PA305&sig=_SRpwfz0YBAjt2aGxXhmRkZ16GQhttps://www.wikiwand.com/en/Special:BookSources/0471244104https://www.wikiwand.com/en/International_Standard_Book_Numberhttp://books.google.com/books?id=pDbQVE3IdTcC&pg=PA143&dq=watch+clock+henlein&hl=en&sa=X&ei=fpXQT_O7EcOA2wWjrdXJDA&ved=0CGYQ6AEwBDgK#v=onepage&q=watch%20clock%20henlein&f=falsehttps://www.wikiwand.com/en/The_Walters_Art_Museumhttp://art.thewalters.org/detail/27471https://www.wikiwand.com/en/Horologyhttps://www.wikiwand.com/en/Zeno-Watch_Baselhttps://www.wikiwand.com/en/History_of_timekeeping_deviceshttps://www.wikiwand.com/en/Raketahttps://www.wikiwand.com/en/Longineshttps://www.wikiwand.com/en/International_Watch_Companyhttps://www.wikiwand.com/en/Fortis_Uhren_AGhttps://www.wikiwand.com/en/Breitling_SAhttps://www.wikiwand.com/en/Patek_Philippe_%26_Co.https://www.wikiwand.com/en/Smartwatchhttps://www.wikiwand.com/en/Atomic_clockhttps://www.wikiwand.com/en/Radio_receiverhttps://www.wikiwand.com/en/WWVHhttps://www.wikiwand.com/en/Radio_clockhttps://www.wikiwand.com/en/Junghanshttps://www.wikiwand.com/en/Quartz_crisishttps://www.wikiwand.com/en/Frequency


11/12



7808-0008-7 .9. ^ Milham 1945, p.141

10. ^ a b Perez, Carlos (2001). "Artifacts of the Golden Age, part 1" . Carlos's Journal. TimeZone. Retrieved 2007-06-06.

11. ^ "Pocketwatch" . Encyclopedia of Antiques. Clocks and Watches. Old and Sold.12. ^ Milham 1945, p.22613. ^ "A Revolution in Timekeeping, part 3" . A Walk Through Time. NIST (National Inst. of

Standards and Technology). 2002. Archived from the original on 2007-05-28. Retrieved 2007-06-06.

14. ^ "Georges-Auguste Leschot" .15. ^ Glasmeier, Amy (2000). Manufacturing Time: Global Competition in the Watch Industry,

1795-2000. Guilford Press. ISBN 9781572305892. Retrieved 2013-02-07.16. ^ Roe, Joseph Wickham (1916), English and American Tool Builders , New Haven, Connecticut:

Yale University Press, LCCN 16011753. Reprinted by McGraw-Hill, New York and London,1926 (LCCN 27-24075); and by Lindsay Publications, Inc., Bradley, Illinois, (ISBN 978-0-917914-73-7).

17. ^ Milham, 1945, p.47518. ^ Calderwood, Cliff. "The Switzerland of America" .

19. ^ Anderson, Joseph (1896). The town and city of Waterbury, Connecticut, Volume 2. New York:The Price and Lee Company.

20. ^ Diana Reid Haig. "Walks Through Napoleon and Josephine's Paris". 2003. p. 11421. ^ "The Breguet saga".22. ^ Julie Mégevand. "Breguet celebrates its rich history". 2012.23. ^ Sidin Vadukut. "Breguet and 200 years of the wristwatch". 2012.24. ^ Jeremy Black. "The Power of Knowledge: How Information and Technology Made the

Modern World". 2014. p.

25. ^ a b c "THe Evolution of the Wristwatch" .26. ^ Assumpção, Maurício Torres (2014). "A história do Brasil nas ruas de Paris". Editora

LeYa/Casa da Palavra.27. ^ Rolex Jubilee Vade Mecum published by the Rolex Watch Company in 1946.28. ^ John E. Brozek. "The History and Evolution of the Wristwatch." . International Watch

Magazine.29. ^ Hoffman, Paul (2004). Wings of Madness: Alberto Santos-Dumont and the Invention of

Flight. Hyperion Press. ISBN 0-7868-8571-8.30. ^ Perez, Carlos (November 23, 2001). "Prometheus Bound: The final paradigm of horological

evolution" . Carlos' Journal. TimeZone. Retrieved April 23, 2008.

External links

Functioning of a simple mechanical watchPictures and overview of the earliest watchesPeter Henlein: Pomander Watch Anno 1505

CategoriesCategories:

Watches

Related topics

Quartz crisis The Quartz Crisis, (also known as the Quartz Revolution), is a term used in the

https://www.wikiwand.com/en/Quartz_crisishttps://www.wikiwand.com/en/Category:Watcheshttps://www.wikiwand.com/en/Help:Categoryhttp://www.peterhenlein.com/http://www.pomanderwatch.com/http://www.collectorebooks.com/watch2/watch01.htmhttp://www.timezone.com/library/cjrml/cjrml0001https://www.wikiwand.com/en/Special:BookSources/0-7868-8571-8https://www.wikiwand.com/en/International_Standard_Book_Numberhttp://www.qualitytyme.net/pages/rolex_articles/history_of_wristwatch.htmlhttp://www.vintagewatchstraps.com/wristwatches.htmlhttps://books.google.com/books?id=KZz9AQAAQBAJhttp://www.livemint.com/Leisure/R3ACelWyBkrSvIpEmSrtjO/Breguet-and-200-years-of-the-wristwatch.htmlhttp://www.wthejournal.com/en/news/view/breguet-celebrates-its-rich-history-with-a-new-reine-de-napleshttp://www.thewatchquote.com/The-Breguet-saga-No_209.htmhttps://books.google.com/books?id=bMFj9XIumxYChttps://archive.org/details/towncityofwaterb02anderhttp://www.completenewengland.com/2006/01/26/the-switzerland-of-america/https://www.wikiwand.com/en/Special:BookSources/9780917914737http://lccn.loc.gov/27024075https://www.wikiwand.com/en/Library_of_Congress_Control_Numberhttps://lccn.loc.gov/16011753https://www.wikiwand.com/en/Library_of_Congress_Control_Numberhttp://books.google.com/books?id=X-EJAAAAIAAJ&printsec=titlepagehttps://www.wikiwand.com/en/Special:BookSources/9781572305892https://www.wikiwand.com/en/International_Standard_Book_Numberhttp://books.google.com/?id=cVUSauNST8EC&dq=British+Watch+Company+mass+productionhttp://www.hautehorlogerie.org/en/players/famous-watchmakers/19th-century/georges-auguste-leschot.htmlhttp://physics.nist.gov/GenInt/Time/revol.htmlhttp://web.archive.org/web/20070528005441/http://physics.nist.gov/GenInt/Time/revol.htmlhttp://www.oldandsold.com/articles02/clocks-p.shtmlhttp://www.timezone.com/library/cjrml/cjrml0006https://www.wikiwand.com/en/Special:BookSources/0-7808-0008-7


12/12


watchmaking industry to refer to the economic upheavals caused by the advent of quartz watches

in the 1970s and early 1980s, which largely replaced mechanical watches. Nuremberg Nuremberg

(/ˈnjʊәrәmbɜrɡ/; German: Nürnberg German pronunciation: [ˈnʏrnbɛrk]) is a city on the Pegnitz

river and the Rhine–Main–Danube Canal in the German state of Bavaria, in the administrative

region of Middle Franconia, about 170 kilometres (110 mi) north of Munich. It is the second-

largest city in Bavaria (after Munich), and the largest in Franconia (Franken). Peter Henlein Peter

Henlein (also spelled Henle or Hele) (1485 - August 1542), a locksmith and clockmaker of

Nuremberg, Germany, is often considered the inventor of the watch. He was one of the firstcraftsmen to make small ornamental taschenuhr, portable clocks which were often worn as

pendants or attached to clothing, regarded as the first watches.

This page is based on a Wikipedia article written by contributors (read/edit).Text is available under the CC BY-SA 4.0 license; additional terms may apply.Images, videos and audio are available under their respective licenses.Cover photo is available under Public domain license. Credit: Philipp Melanchthon (see original file).

Tell your friends about Wikiwand!

Gmail Facebook Twitter http://www.wikiwand.com/ Link

HomeAboutPressSite MapTerms Of ServicePrivacy Policy

History of watches

IntroductionClock-watchesPocketwatchesBalance springTemperature compensation and chronometersLever escapementMass productionWristwatches

Electric watchesQuartz watchesRadio controlledSmartwatchSee alsoReferencesExternal links

Listen to this article
https://www.wikiwand.com/privacyhttps://www.wikiwand.com/termshttps://www.wikiwand.com/sitemaphttps://www.wikiwand.com/presshttps://www.wikiwand.com/abouthttps://www.wikiwand.com/http://twitter.com/share?text=Wikiwand%20gives%20good%20old%20Wikipedia%20a%20great%20new%20look%20-%20check%20it%20out:&hashtags=wikipedia,ux,design&url=http://www.wikiwand.com/%3Fref%3DDSNVAZXW&related=wikiwandhttp://www.facebook.com/sharer.php?u=http://www.wikiwand.com/%3Fref%3DDSNVAZXWhttp://mail.google.com/mail/?view=cm&fs=1&tf=1&to=&su=Have%20you%20seen%20Wikiwand%3F&body=Check%20out%20Wikiwand%20-%20it%27s%20an%20awesome%20new%20interface%20for%20Wikipedia:%0Ahttp://www.wikiwand.com/%3Fref%3DDSNVAZXW%0AGive%20it%20a%20try,%20you%27ll%20thank%20me%20later%20:)https://commons.wikimedia.org/wiki/File:German_-_Spherical_Table_Watch_(Melanchthon%27s_Watch)_-_Walters_5817_-_View_C.jpghttps://en.wikipedia.org/wiki/Philipp_Melanchthonhttp://creativecommons.org/licenses/by-sa/4.0/https://en.wikipedia.org/w/index.php?title=History_of_watches&action=edithttps://en.wikipedia.org/wiki/History_of_watches?oldformat=truehttps://en.wikipedia.org/w/index.php?title=History_of_watches&action=historyhttp://www.wikipedia.org/https://www.wikiwand.com/en/Peter_Henleinhttps://www.wikiwand.com/en/Nuremberghttps://www.wikiwand.com/en/Quartz_crisis

history of watches - wikiwand

Documents