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TOP
Breitling Navitimer 1 B01 Chronograph 43
RM26,105
Free shipping
Verified Dealer
193
US
TOP
Louis Moinet Mechnograph Steel Blue Limited 12 pieces
RM34,966
Verified Dealer
 
AE
Rolex Datejust
RM33,000
Private Seller
MY
Tissot T-Sport
RM1,195
Private Seller
MY
TOP
Casio Gravitymaster GWR-B1000X-1AER LIm-Edition
RM4,407
Verified Dealer
115
ES
TOP
Rolex Datejust 36mm - 2005 - Tapestry Dial - "White Rolesor
RM22,000
Private Seller
MY
TOP
Rolex Datejust Pearlmaster 39, closing sale - o.p. 112.000 CHF
RM309,620
Verified Dealer
28
CH
Omega Globemaster Co-Axial 39mm [2019] NEW
RM19,300
Verified Dealer
35
MY
TOP
Zenith Grande Class Grande Date Rattrapante, Split Second,...
RM56,295
Verified Dealer
15
CH
Omega De Ville Ladymatic 34mm Women's Watch 425.38.34.20.55.001
RM33,154
Free shipping
Verified Dealer
175
US
TOP
Omega Serviced Diamond Dial MOP Co-Axial Seamaster Aqua Terra...
RM11,887
Verified Dealer
391
ES
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Sinn Diving Watch U1 B
RM8,671
Free shipping
Verified Dealer
294
LV
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
RM11,673
Verified Dealer
65
DE
Rolex Sea-Dweller
RM55,007
Verified Dealer
16
MY
TOP
Girard Perregaux Equation Perpètuelle Ewiger Kalender Mondphas...
RM17,390
Verified Dealer
1016
DE
TOP
Rolex Lady-Datejust, new, closing sale - official price 8.500 CHF
RM23,813
Verified Dealer
28
CH
Omega Constellation Ladies 35mm New [2019]
RM11,000
Verified Dealer
35
MY
Omega Seamaster Planet Ocean 600M Chronograph
RM25,251
Verified Dealer
12
EE
Rolex Sea-Dweller NEUVE VENDUE
RM61,698
Verified Dealer
 
FR
TOP
Chopard Manufacture Caliber Mille Miglia 01.01-C GT XL 8565
RM14,269
Verified Dealer
391
ES
Breitling Navitimer World 46mm
RM18,217
Verified Dealer
5
CZ
Rolex Datejust 41 Réf.126334
RM41,688
Verified Dealer
8
FR
Rolex Explorer II White Cal. 3186 Rehaut Engraving
RM30,730
Verified Dealer
1210
NL
Omega スピードマスター マークII コーアクシャル リオオリンピック2016 522.10.43.50.01.001
RM18,069
Free shipping
Verified Dealer
261
JP
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Hublot Classic Fusion Ultra-Thin 42, closing sale - o.p....
RM73,613
Verified Dealer
28
CH
Rolex Datejust | NEU | UNGETRAGEN | FULLSET
RM50,502
Verified Dealer
45
DE
Rolex Datejust 41mm 2019 NEW 126334
RM43,921
Verified Dealer
171
US
Rolex Daytona 40 mm 18k Yellow Gold Ref#16528 Diamond Dial,...
RM134,107
Free shipping
Verified Dealer
14
US
Rolex Lady-Datejust 28 279161 - Diamond Set - Unworn 2016
RM44,771
Verified Dealer
241
UK
Breitling Chrono-Matic 49 Limited
RM13,756
Verified Dealer
5
CZ
Rolex Sea-dweller 43mm Réf.126600
RM64,080
Verified Dealer
8
FR
Rolex Submariner Date Black Ceramic NEW IN STICKERS
RM52,169
Verified Dealer
1210
NL
TAG Heuer カレラ グランドデイト GMT キャリバー8 WAR5010.BA0723
RM8,642
Free shipping
Verified Dealer
261
JP
TOP
Breguet Reine de Naples, new, closing sale, off. pr. - 35.200 CHF
RM99,595
Verified Dealer
28
CH
Patek Philippe Große CHRONOMETRO GONDOLO 18k Gold, 133g 56mm...
RM41,926
Free shipping
Verified Dealer
11
DE
Rolex Submariner Kermit 16610LV
RM166,055
Free shipping
Verified Dealer
437
UK
Omega 1957トリロジーレイルマスター・60th LIMITED
RM19,758
Free shipping
Verified Dealer
 
JP
Breitling Chronomat 41 Steel
RM18,343
Free shipping
Verified Dealer
81
ES
Breitling Navitimer World
RM20,448
Verified Dealer
5
CZ
Rolex Datejust 41 Réf.126334
RM40,258
Verified Dealer
8
FR
Breitling Bentley Motors
RM20,010
Verified Dealer
1210
NL
Omega Constellation
RM16,000
Verified Dealer
14
MY
TOP
Chaumet Liens 33, new, closing down sale, official price...
RM43,300
Verified Dealer
28
CH
Rolex Sea-Dweller - ref.126600 - Jahr: 2018 - LC137 Teil verklebt
RM63,365
Verified Dealer
8
DE
Rolex Daytona 16520
RM163,560
Free shipping
Verified Dealer
437
UK
Omega シーマスターアクアテラ RGコンビ
RM14,259
Free shipping
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JP
Rolex Air King 114210 Blue Dial
RM19,534
Free shipping
Verified Dealer
81
ES
Omega Chronometer DDR Grade Very best 18k Gold World Time 1916
RM44,308
Free shipping
Verified Dealer
11
DE
Rolex Sea-Dweller 50th Year Anniversary 126600
RM59,655
Verified Dealer
171
US
Rolex Submariner Date Gold/Steel Blue
RM41,211
Verified Dealer
1210
NL
Rolex Datejust 41mm Wimbledon Dial Fluted Bezel 126334
RM46,969
Free shipping
Verified Dealer
 
US
TOP
Rolex Lady-Datejust, new, closing sale - official price 24.900...
RM64,952
Verified Dealer
28
CH
Chopard Mille Miglia GMT
RM12,950
Verified Dealer
14
MY
Rolex Daytona 116576TBR
RM512,859
Free shipping
Verified Dealer
437
UK
Omega デ・ビル プレステージ
RM9,938
Free shipping
Verified Dealer
 
JP
Omega Seamaster 300 M
RM24,950
Verified Dealer
10
UK
Baume & Mercier Riviera
RM14,293
Verified Dealer
 
IT
Tiffany & Co. / LeCoultre, Piguet Les Brassus 18k Gold 1882...
RM25,251
Free shipping
Verified Dealer
11
DE
Rolex Submariner Date
RM33,303
Verified Dealer
1210
NL
Breitling Superocean II 42 Stainless Steel w/ Black Dial A17365C9
RM16,843
Free shipping
Verified Dealer
14
US
TOP
Rolex Datejust Pearlmaster 34, new, closing sale - o.p. 31.600...
RM84,439
Verified Dealer
28
CH
TAG Heuer Grand Carrera
RM7,300
Verified Dealer
14
MY
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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.