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TOP
Omega Globemaster
AED 16,653
Verified Dealer
7
HK
TOP
Omega 311.92.44.51.01.006 Speedmaster Professional Moonwatch
AED 35,230
Verified Dealer
7
HK
TOP
Omega 123.20.35.20.01.001 CONSTELLATION
AED 18,428
Verified Dealer
7
HK
TOP
Omega 231.10.34.20.55.002 Seamaster Aqua Terra
AED 18,181
Verified Dealer
7
HK
TOP
Rolex Lady-Datejust 26
AED 74,657
Verified Dealer
24
CH
TOP
Rolex OYSTER PERPETUAL CHRONOMETER 18K GOLD HONEYCOMB WABENBLATT
AED 33,211
Verified Dealer
360
DE
TOP
Sinn Diving Watch U1 B
AED 7,565
Verified Dealer
245
LV
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AED 26,667
Verified Dealer
34
US
TOP
Ball Engineer Hydrocarbon Airborne
AED 8,380
Private Seller
 
AE
Tudor Pelagos 25600TB titanium blue new model NEW
AED 14,922
Verified Dealer
720
BE
TOP
Breitling Navitimer Triple Date Moonphase Chrono - A1938021/BD...
AED 26,394
Free shipping
Verified Dealer
422
NL
TOP
Omega Seamaster Planet Ocean Master 43,5 PyeongChang 2018 Limited
AED 22,695
Verified Dealer
439
DE
Breitling Colt Oceane Lady
AED 7,898
Verified Dealer
1127
NL
TOP
Rolex Datejust 31
AED 114,868
Verified Dealer
24
CH
TOP
Rolex Lady Datejust Pearlmaster Masterpiece 18K Gold
AED 36,952
Verified Dealer
360
DE
TOP
Sinn 910 Jubiläum (Limited Edition)
AED 22,861
Free shipping
Verified Dealer
245
LV
Rolex Datejust Yellow Gold Steel White Dial Roman Numeral Watch
AED 14,171
Verified Dealer
34
US
TOP
Eberhard & Co. Chrono 120 ÉME Aniversario Edicion Limitada
AED 36,163
Verified Dealer
50
ES
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
AED 10,184
Verified Dealer
60
DE
TOP
Breitling Classic Navitimer 40 Automatic Chronograph 2Tone...
AED 14,132
Free shipping
Verified Dealer
422
NL
TOP
Omega Seamaster Olympic Games Limited Edition 522.32.40.20.01.003
AED 17,624
Verified Dealer
439
DE
Ball Roadmaster Challenger 18 (Day-Date)
AED 7,400
Private Seller
 
AE
TOP
Jaquet-Droz LegendGeneva Grande Seconde - limited edition No. 1/8
AED 63,169
Verified Dealer
24
CH
Rolex Oyster Perpetual Date Mint 18K Gold Gelbgold
AED 21,988
Verified Dealer
360
DE
Chronoswiss Chronometer Chronograph 2013 38mm CH7523 Automatic
AED 9,082
Free shipping
Verified Dealer
106
AE
Omega : Seamaster 300 Master Co-Axial : 233.30.41.21.01.001 :...
AED 17,000
Verified Dealer
394
US
Ball Engineer Hydrocarbon AeroGMT II DG2018C-SC-BE
AED 11,389
Verified Dealer
4320
DE
Omega Seamaster Diver 300m Co-Axial Master Chronometer 42mm...
AED 20,246
Free shipping
Verified Dealer
379
US
TOP
Chopard L.U.C Pro One Diver black dial 42,5 - TOP CONDITION
AED 12,886
Free shipping
Verified Dealer
422
NL
Breitling Mens' AB2010121B1A1 Superocean Héritage II 42
AED 14,045
Verified Dealer
2276
CH
IWC Portuguese Chronograph
AED 20,265
Private Seller
 
AE
TOP
Rolex Lady-Datejust Pearlmaster 29
AED 189,545
Verified Dealer
24
CH
Omega Speedmaster Professional Moonwatch Moonphase
AED 34,292
Verified Dealer
60
ES
Chopard Mille Miglia STEEL Automatic 44mm LIMITED EDITION 8571
AED 14,111
Free shipping
Verified Dealer
106
AE
Omega Seamaster Planet Ocean Chronograph
AED 17,458
Verified Dealer
32
ES
Rolex Sea-Dweller Deepsea Bicolor 126603
AED 74,362
Verified Dealer
4320
DE
Paul Picot Technicum Rattrapante Chrono Ref. 4101 Year 2005...
AED 30,585
Free shipping
Verified Dealer
AE
TOP
Hermès Clipper XL Ø 44 mm Automatic Chronograph - CP1910
AED 10,184
Free shipping
Verified Dealer
422
NL
Breitling Avenger Blackbird 44
AED 10,133
Verified Dealer
94
AE
Breitling Bentley B04 GMT Midnight Carbon Limited Edition
AED 32,000
Private Seller
 
AE
TOP
Rolex Lady-Datejust 26
AED 20,278
Verified Dealer
24
CH
Rolex President 179179 18k White Gold Ladies' 26mm Dress Watch
AED 34,151
Verified Dealer
39
US
Omega Seamaster Planet Ocean 2012 Professional Co Axial Automatic
AED 12,760
Free shipping
Verified Dealer
106
AE
Omega Seamaster Chronograph 44mm Men's Watch 212.30.44.50.03.001
AED 14,167
Free shipping
Verified Dealer
137
US
Breitling Navitimer 01 Stratos Grey 46mm Limited Edition
AED 20,637
Free shipping
Verified Dealer
7
US
Omega 3,000円割引クーポンが使える! オメガ デビル プレステージ 36.8mm 自動巻き クロノメーター...
AED 9,628
Verified Dealer
 
JP
Breitling Transocean Chronograph Unitime
AED 25,979
Verified Dealer
240
DE
Breitling Superocean II 42
AED 8,256
Verified Dealer
94
AE
Omega Seamaster Aqua Terra
AED 15,532
Private Seller
 
AE
TOP
Breguet Reine de Naples
AED 84,231
Verified Dealer
24
CH
Tudor Heritage Black Bay Fifty-Eight Automatik Chronometer 79030N
AED 13,675
Verified Dealer
4320
DE
Rolex Air King STEEL 34mm 114234 DIAMOND DIAL Automatic Date
AED 15,837
Free shipping
Verified Dealer
106
AE
Panerai PAM 28 A Power Reserve Silver Arrow Hobnail Dial PVD T...
AED 48,336
Verified Dealer
85
US
Omega Seamaster Planet Ocean Chronograph
AED 20,547
Private Seller
 
AE
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AED 42,346
Verified Dealer
 
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Rolex Sea-Dweller 4000 Rolex Sea-Dweller 4000 126600
AED 53,000
Private Seller
 
AE
Ball Engineer Hydrocarbon AeroGMT II Limited Edition
AED 12,880
Private Seller
 
AE
Tissot Le Locle Automatic COSC Black PVD Men's WatchT006.408.3...
AED 2,400
Private Seller
 
AE
Omega Seamaster Diver 300 M
AED 14,000
Private Seller
 
AE
TOP
Breguet Classique
AED 42,106
Verified Dealer
24
CH
Breitling Colt 33 2015 QUARTZ 33mm STEEL Ladies Lady A7738711
AED 6,230
Free shipping
Verified Dealer
106
AE
Breitling Avenger Blackbird
AED 10,883
Verified Dealer
94
AE
Panerai PAM 369 Radiomir Stainless Steel Automatic Chronograph...
AED 22,498
Verified Dealer
85
US
Rolex Datejust 36mm - Steel and Gold Datejust 36mm - Steel and...
AED 36,721
Verified Dealer
52
US
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Chronometer - Certified Precision

"Chronometer" may sound like a fancy name for a normal watch - after all, it just comes from the Greek words for "time" and "measure" - but chronometers are really something quite special. Chronometers are watches, yes, but watches that have been tried and tested and certified to meet exacting precision standards. The COSC in Switzerland determines which watches may actually call themselves "chronometers".

The Oceanic Origins of Chronometers

Though the Swiss set the standard, the English coined the word. In the quest to calculate the longitude, the Englishman Jeremy Thacker, a clockmaker of extraordinary skill, created a series of increasingly accurate clocks, well beyond what had had previously been achieved. The clocks were intended to be used aboard ships and had to keep absolutely accurate time in order to allow for calculating longitude precisely, and thus fixing the position of the ship in the vast ocean. The last of Thacker's chronometers was actually more like a very large pocket watch.

Other clockmakers - and increasingly watchmakers - copied from and improved upon Thacker's final chronometer, producing watches of greater and greater precision. The original standards for accuracy were actually far more exacting than those currently maintained by the COSC in Switzerland, so very few watches were certified as chronometers and thus very few were actually produced and sold. The original chronometer requirements for mechanical watches are no longer necessary, since digital watches can already exceed them, but chronometers are still manufactured and sold (and resold) today as examples of extremely fine precision engineering. The use of jewels and precious metals in watches owes its origins to chronometers - these materials were used to make the mechanical movements as precise as possible.

Officially Certified Chronometers

Chronometers are no longer rare. More than a million Officially Certified Chronometer certificates are issued each year. Those watches that pass the most rigorous of the COSG's tests are rewarded with a special serial number and, indeed, the right to call themselves "chronometers" at all. Chronometers must meet several requirements: they must display the seconds; they must be highly precise; they must demonstrate that precision over the course of several consecutive days of testing; they must perform precisely in different positions and at different temperatures.

Chronometers in Everyday Use

This may sound extreme, but such reliability was crucial for individuals and groups that had to rely on the precision of portable mechanical timekeepers in the past. Pilots watches, for instance, needed to perform as chronometers (and those that did not had to be hackable). The famous B-Uhren, commissioned by the German Luftwaffe and manufactured by several companies, were chronometer-certified pilots watches - or chronometers that were used as pilots watches, depending on your perspective. Interestingly, despite the many years between Thacker's invention and the production of the B-Uhren, chronometers were still tightly bound to use in navigation.

First at sea, then in the air. And, still today, at sea again - or at least under it. Some diving watches, like the Rolex submariner, are also certified chronometers. Divers must be able to reliably track how long they've been under and how much time they have to surface.

Though their accuracy may have been eclipsed by digital watches, chronometers are still useful today.