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Omega Seamaster 300 233.32.41.21.01.001 New Steel 41mm Automatic
TOP
Omega Seamaster 300 SPECTRE. NEW 2019
S$ 14,191
Verified Dealer
21
AT
Omega De Ville Prestige 424.10.33.20.05.001 New Steel 32.7mm Automatic
TOP
Omega 424.10.33.20.05.001 De Ville Prestige
S$ 3,921
Verified Dealer
19
HK
Rolex GMT-Master 16750 Very good Steel 40mm Automatic
TOP
Rolex GMT-Master 16750
S$ 20,619
Free shipping
Verified Dealer
470
UK
Omega De Ville Prestige 424.53.40.20.02.001 New Rose gold 39.5mm Automatic
TOP
Omega De Ville Prestige Co-Axial
S$ 7,775
Free shipping
Verified Dealer
264
US
Panerai Luminor Marina Automatic PAM 104 Steel 44mm Automatic
Panerai PAM 104 Luminor Marina Rugby Winners - Europeans...
S$ 12,461
Free shipping
Verified Dealer
119
UK
Rolex Datejust 16233 Very good Gold/Steel 36mm Automatic
Rolex Datejust 36 Steel/Gold Jubilee Fluted Tapestry Dial
S$ 8,011
Verified Dealer
1310
NL
Rolex Yacht-Master 40 16622 Very good Steel 40mm Automatic
Rolex Yacht-Master Stahl Platin Automatik 40mm Ref.16622...
S$ 12,021
Verified Dealer
1260
DE
Rolex Sea-Dweller 126600 New Steel 43mm Automatic Singapore, Singapore
Rolex Sea-Dweller
S$ 20,280
Verified Dealer
 
SG
Omega De Ville Ladymatic 425.37.34.20.57.003 New Steel 34mm Automatic
Omega De Ville Ladymatic Co-Axial 34mm
S$ 16,518
Verified Dealer
5913
DE
Rolex Lady-Datejust 179138 New Yellow gold 26mm Automatic
TOP
Rolex Lady-Datejust 26, new, official retail price: 33.600 CHF
S$ 31,255
Verified Dealer
36
CH
Rolex Air King Precision 14000 Very good Steel 34mm Automatic
Rolex Oyster Perpetual Air King Precision 14000 aus 2000
S$ 4,959
Verified Dealer
69
DE
Omega Seamaster Diver 300 M 210.32.42.20.06.001 New Steel 42mm Automatic
Omega Seamaster Diver 300M Steel Blue Ceramic Grey Dial 42mm New
S$ 5,036
Verified Dealer
122
UK
Longines Admiral L3.603.4 Very good Steel 40mm Automatic
Longines Admiral Chronograph
S$ 1,663
Verified Dealer
1250
BE
Rolex Datejust 16014 Very good Steel 36mm Automatic
Rolex Datejust 16014 Men Watch
S$ 5,493
Free shipping
Verified Dealer
305
US
Breitling Bentley Motors A2536212/B686 Very good Steel 49mm Automatic
Breitling A2536212/B686 Bentley Motors T Speed Chonograph...
S$ 5,357
Verified Dealer
422
US
Rolex Datejust 126281RBR Unworn Gold/Steel 36mm Automatic
Rolex Datejust Stahl Roségold Everose Schokobraun Diamanten...
S$ 27,435
Verified Dealer
DE
Breitling Navitimer AB01211B1B1X1 New Steel 43mm Automatic
Breitling Navitimer B01 Chronograph 43 Swissair Tang Watch...
S$ 8,071
Free shipping
Verified Dealer
252
US
Omega Seamaster Diver 300 M 210.92.42.20.01.001 New Titanium 42mm Automatic
Omega Seamaster Diver 300 M Co-Axial Master Chronometer 42 mm...
Price on request
Verified Dealer
5913
DE
Hublot Classic Fusion Ultra-Thin 545.OX.0180.LR New Rose gold 42mm Manual winding
TOP
Hublot Classic Fusion Ultra-Thin, official retail price:...
S$ 23,807
Verified Dealer
36
CH
Rolex Submariner Date 16613 Very good Gold/Steel 40mm Automatic
Rolex Submariner Date Blue Dial K18YG Steel 40MM "M Series"
S$ 14,347
Verified Dealer
242
JP
Breitling Superocean Héritage II Chronographe A1331212/C968/754P/A20BA.1 New Steel 46mm Automatic
Breitling SUPEROCEAN HÉRITAGE II CHRONOGRAPH 46
S$ 6,804
Verified Dealer
258
IT
Rolex Oyster Perpetual Very good Steel 34mm Automatic
Rolex Oyster Perpetual 1002 Stainless Steel Automatic, 7 inch...
S$ 4,496
Free shipping
Verified Dealer
573
US
Rolex Datejust 126301 Unworn Gold/Steel 41mm Automatic
Rolex Datejust 41 Ref. 126301 Choco Diamant Jubile-Band
S$ 21,332
Verified Dealer
486
DE
Rolex Datejust 16013 Very good Steel 36mm Automatic
Rolex Datejust 16013 Watch
S$ 6,455
Free shipping
Verified Dealer
305
US
Omega Seamaster Planet Ocean Chronograph 215.30.46.51.03.001 Unworn Steel 45.5mm Automatic
Omega Seamaster Planet Ocean 600m Co-Axial Master Chronograph...
S$ 10,117
Verified Dealer
1260
DE
Eterna 1948 8515.41 Very good Steel 39mm Automatic Singapore, Singapore
Eterna 1948 Moonphase Chronograph
S$ 3,500
Private Seller
 
SG
Omega Seamaster 300 233.90.41.21.03.001 New Titanium 41mm Automatic
Omega Seamaster 300
S$ 8,942
Verified Dealer
5913
DE
Rolex Datejust 178288 New Yellow gold 31mm Automatic
TOP
Rolex Datejust 31, new, official retail price: 39.600 CHF
S$ 41,204
Verified Dealer
36
CH
Omega Seamaster Aqua Terra 231.10.42.21.03.003 Very good Steel 41.5mm Automatic Singapore, Singapore
Omega Seamaster Aqua Terra James Bond Ref: 231.10.42.21.03.003
S$ 4,885
Verified Dealer
23
SG
Omega De Ville Prestige 424.20.40.20.13.001 New Gold/Steel 39.5mm Automatic
Omega De Ville Prestige 39.5mm Steel-Red Gold Brown Dial...
S$ 6,824
Free shipping
Verified Dealer
80
HK
Omega Speedmaster Racing 326.30.40.50.01.002 Very good Steel 40mm Automatic
Omega Speedmaster Racing Date Co-Axial Panda Dial - Mint B &P
S$ 4,576
Verified Dealer
DE
Omega Seamaster Diver 300 M 212.30.41.20.01.005 Very good Steel 41mm Automatic Singapore, Singapore
Omega Seamaster Diver 300M 007 James Bond 41mm Limited Edition
S$ 5,250
Verified Dealer
165
SG
Breitling Colt A17388 Very good Steel 44mm Automatic
Breitling Colt Chronometer A17388 Mens Watch
S$ 4,120
Free shipping
Verified Dealer
305
US
Rolex Daytona 116500 Very good Steel 40mm Automatic
Rolex Daytona Keramik Black Stahl Automatik Chronograph 40mm...
S$ 35,913
Verified Dealer
1260
DE
Omega Seamaster Planet Ocean 232.32.44.22.03.001 Very good Steel Automatic Singapore, Singapore
Omega Seamaster Planet Ocean GoodPlanet GMT
S$ 5,800
Private Seller
 
SG
TAG Heuer Autavia WBE5110.FC8266 New Steel 42mm Automatic
TAG Heuer Autavia Isograph Automatik 42mm
S$ 3,822
Verified Dealer
5913
DE
Breguet Classique 5140BA/29/9W6 New Yellow gold 40mm Automatic
TOP
Breguet Classique 40, new, official retail price: 18.300 CHF
S$ 16,985
Verified Dealer
36
CH
Omega Seamaster 300 233.30.41.21.01.001 Very good Steel 41mm Automatic Singapore, Singapore
Omega Seamaster 300 Master Co-Axial 41mm Ref: 233.30.41.21.01.001
S$ 4,780
Verified Dealer
23
SG
Rolex Day-Date 36 118139 New White gold 36mm Automatic
TOP
Rolex Day-Date White Gold Cherry Dial NEW 118139
S$ 27,390
Verified Dealer
708
NL
Sinn 103 103.0619 New Steel 41mm Automatic
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
S$ 3,739
Verified Dealer
74
DE
TAG Heuer Carrera Calibre 8 WAR5012.BA0723 Very good Steel 41mm Automatic Singapore, Singapore
TAG Heuer Carrera Calibre 8
S$ 2,250
Verified Dealer
165
SG
Breitling Transocean Unitime Pilot AB0510U6/BC26/159A New Steel 46mm Automatic
TOP
Breitling Transocean Unitime Pilot
S$ 10,834
Verified Dealer
1420
ES
Rolex Submariner (No Date) 14060M Very good Steel 40mm Automatic
Rolex Submariner no Date Stahl Automatik 40mm Ref.14060M...
S$ 13,059
Verified Dealer
DE
Omega Speedmaster Professional Moonwatch 310.20.42.50.01.001 Unworn Steel 42mm Manual winding Singapore, Singapore
Omega Apollo 11 50th Anniversary Speedmaster Moonwatch Limited
S$ 17,165
Private Seller
 
SG
Omega Constellation 131.10.29.20.06.001 New Steel 29mm Automatic
Omega Constellation Manhattan Co-Axial Master Chronometer 29 mm
S$ 6,531
Verified Dealer
5913
DE
Rolex Datejust 116188 New Yellow gold 36mm Automatic
TOP
Rolex Datejust 36, new, official retail price: 29.800 CHF
S$ 28,071
Verified Dealer
36
CH
Omega Seamaster Aqua Terra 231.10.39.21.02.001 Good Steel 38.5mm Automatic Singapore, Singapore
Omega Seamaster Aqua Terra 150M Co-Axial Ref: 23110392102001
S$ 3,730
Verified Dealer
23
SG
Breitling Crosswind Racing B13355 Good 42.5mm Automatic
Breitling Crosswind B13355 - Mens - F?XC9T
S$ 4,296
Verified Dealer
688
UK
Omega Seamaster Diver 300 M Omega Seamaster 300m Professional Chronometer Ref.2531.80.00 Very good Steel 41mm Automatic
Omega Seamaster 300m Professional Automatic 41mm
S$ 2,459
Verified Dealer
38
US
Breitling Chronomat Evolution B13356 Very good Gold/Steel 44mm Automatic Singapore, Singapore
Breitling Chronomat Evolution, FULL SET Steel/Gold Band
S$ 4,450
Verified Dealer
165
SG
Heuer Very good Steel 51mm Manual winding
TOP
Heuer Compteur
S$ 711
Verified Dealer
73
CH
Omega Seamaster Aqua Terra 220.10.41.21.03.001 Unworn Steel 41mm Automatic
Omega Seamaster Aqua Terra Co-Axial Stahl Automatik Master...
S$ 6,615
Verified Dealer
1260
DE
Omega Seamaster Aqua Terra 231.10.39.21.03.002 Very good Steel 38.5mm Automatic Singapore, Singapore
Omega (231.10.39.21.03.002) Seamaster Aqua Terra Steel 38.5mm...
S$ 4,450
Private Seller
 
SG
TAG Heuer Autavia WBE5114.EB0173 New Steel 42mm Automatic
TAG Heuer Autavia Automatik 42mm
S$ 3,586
Verified Dealer
5913
DE
Hublot Classic Fusion Ultra-Thin 515.NX.2210.LR New Titanium 45mm Manual winding
TOP
Hublot Classic Fusion Ultra-Thin, official retail price:...
S$ 11,079
Verified Dealer
36
CH
Graham Chronofighter 2cfbps Very good Steel 43mm Automatic Singapore, Singapore
Graham Chronofighter "Stuffy" Limited Edition Ref: 2CFBPS
S$ 3,310
Verified Dealer
23
SG
Breitling Superocean II 44 A17392D8/C910-162A New Steel 44mm Automatic Singapore, Singapore
Breitling Superocean II 44
S$ 4,100
Verified Dealer
43
SG
Rolex Lady-Datejust 69173 Very good Steel 26mm Automatic
Rolex Datejust 69173 Linen Dial Watch Box Papers
S$ 5,081
Free shipping
Verified Dealer
305
US
Omega Seamaster Aqua Terra 231.13.44.50.04.001 Very good Steel 44mm Automatic Singapore, Singapore
Omega Seamaster Aqua Terra Co-Axial Chronograph
S$ 4,000
Verified Dealer
165
SG
Omega Seamaster Planet Ocean 232.92.44.22.03.001 Unworn Titanium 43.5mm Automatic
Omega Seamaster Planet Ocean 600M Watch 232.92.44.22.03.001
S$ 7,830
Verified Dealer
119
US
Rolex Datejust 126334 Unworn Gold/Steel Automatic
Rolex Datejust Rhodium Dial, 41mm
S$ 15,990
Verified Dealer
87
CH
Montblanc Star 7038 Very good Steel Quartz Singapore, singapore
Montblanc Star Chronograph
S$ 962
Private Seller
 
SG
Breitling Navitimer 1 B01 Chronograph 43 AB01219A1G1A1 New Steel 43mm Automatic
Breitling Navitimer 1 B01 Chronograph 43
S$ 8,808
Verified Dealer
136
US
Breguet Classique 5178BR/29/9V6.D000 New Rose gold 38mm Automatic
TOP
Breguet Classique 38, new, official retail price: 26.700 CHF
S$ 24,091
Verified Dealer
36
CH
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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.


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