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Hublot Big Bang Carbon Bezel Baguette 24000€ HT
Top
Hublot Big Bang Carbon Bezel Baguette 24000€ HT
S$ 47,064
Seller
RIVIERAWATCH
47
FR
Panerai RADIOMIR 1940 3 DAYS GMT PAM570 Limited 300 ex
Top
Panerai RADIOMIR 1940 3 DAYS GMT PAM570 Limited 300 ex
S$ 35,788
Seller
RIVIERAWATCH
47
FR
Sinn 103 St Sa RB Classic Watch Sondermodell
Top
Sinn 103 St Sa RB Classic Watch Sondermodell
S$ 3,906
Seller
Classic Watch
 
DE
Rolex Daytona 116523 Stainless Steel & 18K Gold Model...
Rolex Daytona 116523 Stainless Steel & 18K Gold Model...
S$ 16,000
Seller
Private seller
SG
Breitling Chronomat 41 Limited Edition
Breitling Chronomat 41 Limited Edition
S$ 7,530
Seller
Private seller
SG
Casio PRX-8000YT-1
Casio PRX-8000YT-1
S$ 2,000
Seller
Private seller
SG
Omega Constellation Ladies Red Gold and Steel
Omega Constellation Ladies Red Gold and Steel
S$ 9,950
Seller
Private seller
SG
Panerai Luminor 1950 PAM 127 "Fiddy" Limited Edition
Panerai Luminor 1950 PAM 127 "Fiddy" Limited Edition
S$ 18,980
Seller
GRluxury Pte Ltd
SG
Rolex Explorer II "Orange Hand"
Rolex Explorer II "Orange Hand"
S$ 17,500
Seller
Monster Time Gallery
SG
Omega De Ville Prestige
Omega De Ville Prestige
S$ 1,980
Seller
The Time Co.
SG
Breitling Professional Cockpit B50 Night Mission -20%
Breitling Professional Cockpit B50 Night Mission -20%
S$ 9,400
Seller
Fliers Juweliers
 
NL
Chopard Superfast Chrono - watch on stock in Zurich
Chopard Superfast Chrono - watch on stock in Zurich
S$ 11,496
Seller
LUXURY TRADING ZURICH GMBH
 
CH
Oris BC3 Advanced, Day Date
Oris BC3 Advanced, Day Date
S$ 1,700
Seller
Venus1968.com
28
ES
Rolex Sea-Dweller
Rolex Sea-Dweller
S$ 18,600
Seller
ARIELLE JEWELLERS AND WATCHES TRADING
SG
Rolex Roman Tapestry Dial 16013 Vintage Watch (Year 1985)
Rolex Roman Tapestry Dial 16013 Vintage Watch (Year 1985)
S$ 3,638
Seller
Asia Timepiece
SG
Hublot 301.AI.460.RX
Top
Hublot 301.AI.460.RX
price on request
Seller
Deluxe ( Asia ) Ltd
 
HK
Omega Ploprof 1200M
Omega Ploprof 1200M
S$ 7,280
Seller
GRluxury Pte Ltd
SG
Rolex Vintage Explorer II "Albino" Straight hand
Rolex Vintage Explorer II "Albino" Straight hand
S$ 22,800
Seller
Monster Time Gallery
SG
TAG Heuer Monza Chronograph 18K Gold Limited Edition Automatic
TAG Heuer Monza Chronograph 18K Gold Limited Edition Automatic
S$ 8,500
Seller
Lu-Ann Vintage Collection
SG
Omega Constellation Diamonds Ladies 27mm Automatic Mop (lnib)
Omega Constellation Diamonds Ladies 27mm Automatic Mop (lnib)
S$ 4,700
Seller
Goldman Luxury
SG
Breitling Navitimer 01 (46mm) - blacksteel - Export price CHF...
Breitling Navitimer 01 (46mm) - blacksteel - Export price CHF...
S$ 9,578
Seller
LUXURY TRADING ZURICH GMBH
 
CH
Oris BC3 Advanced, Day Date
Oris BC3 Advanced, Day Date
S$ 1,561
Seller
Venus1968.com
ES
Rolex Sea-Dweller Deepsea
Rolex Sea-Dweller Deepsea
S$ 18,000
Seller
ARIELLE JEWELLERS AND WATCHES TRADING
SG
Rolex Vintage Oyster Perpetual Datejust Ref 1601 (Year 1970)
Rolex Vintage Oyster Perpetual Datejust Ref 1601 (Year 1970)
S$ 3,638
Seller
Asia Timepiece
SG
Corum 895-931-06-0371-AN92
Top
Corum 895-931-06-0371-AN92
S$ 9,674
Seller
Deluxe ( Asia ) Ltd
 
HK
Rolex Deepsea D-Blue “James Cameron” Ref 116660
Rolex Deepsea D-Blue “James Cameron” Ref 116660
S$ 16,980
Seller
GRluxury Pte Ltd
SG
Panerai Luminor Power Reserve PAM27
Panerai Luminor Power Reserve PAM27
S$ 9,850
Seller
Monster Time Gallery
SG
Chopard Mille Miglia Gran Turismo XL Chronograph
Chopard Mille Miglia Gran Turismo XL Chronograph
S$ 5,600
Seller
Lu-Ann Vintage Collection
SG
Rolex GMT II Ceramica art. Rg659
Rolex GMT II Ceramica art. Rg659
S$ 9,641
Seller
Stroppiana SRL
208
IT
Chopard Superfast Chrono - watch on stock in Zurich
Chopard Superfast Chrono - watch on stock in Zurich
S$ 12,117
Seller
LUXURY TRADING ZURICH GMBH
 
CH
Oris Aquis Depth Gauge
Oris Aquis Depth Gauge
S$ 3,759
Seller
Venus1968.com
28
ES
Omega Seamaster 300 James Bond 007 "SPECTRE" Limited...
Top
Omega Seamaster 300 James Bond 007 "SPECTRE" Limited...
S$ 11,285
Seller
Private seller
 
CH
Omega Seamaster Professional Chronometer Ref 1681640 Blue
Omega Seamaster Professional Chronometer Ref 1681640 Blue
S$ 3,040
Seller
Asia Timepiece
SG
Ulysse Nardin - Maxi Marine Chronometer Manufacture - 263-66 -...
Auction
Ulysse Nardin - Maxi Marine Chronometer Manufacture - 263-66 -...
S$ 2,941
Estimated price
Seller
Catawiki BV
 
Omega Speedmaster 125 Anniversary Ref ST 378.0801
Omega Speedmaster 125 Anniversary Ref ST 378.0801
S$ 4,980
Seller
GRluxury Pte Ltd
SG
Omega Seamaster Professional 300m Automatic - 41 mm
Omega Seamaster Professional 300m Automatic - 41 mm
S$ 2,762
Seller
wagener-gold International e.K.
632
DE
Chopard Tycoon XL Two O Ten Chronograph
Chopard Tycoon XL Two O Ten Chronograph
S$ 4,125
Seller
Lu-Ann Vintage Collection
SG
Rolex Datejust
Rolex Datejust
S$ 11,256
Free shipping
Seller
LABELLE JEWELRY
 
US
Rolex Rare S/S O/P UAE Air Force Pepsi Bezel GMT-Master...
Rolex Rare S/S O/P UAE Air Force Pepsi Bezel GMT-Master...
S$ 175,934
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
60
UK
Omega Seamaster James Bond 007 Limited Edition 212.30.36.20.51...
Omega Seamaster James Bond 007 Limited Edition 212.30.36.20.51...
S$ 4,494
Seller
Uhren2000 GmbH
206
DE
Omega Constellation Ref. 168.004 18k Gold Vintage
Omega Constellation Ref. 168.004 18k Gold Vintage
S$ 11,119
Seller
Best Deals HD
 
US
Breitling Emergency Chronometre E76321 with Co-Pilot Module
Breitling Emergency Chronometre E76321 with Co-Pilot Module
S$ 6,589
Seller
Asia Timepiece
SG
Hublot Big Bang Sang Bleu (Limited Edition)
Hublot Big Bang Sang Bleu (Limited Edition)
S$ 59,483
Free shipping
Seller
Istock LTD
22
LV
F.P.Journe Resonance Brass Movement Platinum 38mm
F.P.Journe Resonance Brass Movement Platinum 38mm
S$ 62,966
Free shipping
Seller
A Collected Man
5
UK
Rolex Milgauss 116400GV BLUE 40mm JUST SERVICED 3486 NO PAPERS
Rolex Milgauss 116400GV BLUE 40mm JUST SERVICED 3486 NO PAPERS
S$ 8,496
Seller
Plus Watch - Luxury Watches
2088
IT
Rolex Datejust
Rolex Datejust
S$ 12,908
Seller
Juwelier Rubin GbR
 
DE
Rolex GMT I zaffiro art. Rg363
Rolex GMT I zaffiro art. Rg363
S$ 9,723
Seller
Stroppiana SRL
208
IT
Rolex Explorer II Tiffany&Co
Rolex Explorer II Tiffany&Co
S$ 40,854
Seller
2GTime
 
CH
Omega Seamaster 300 Spectre Limited Edition
Omega Seamaster 300 Spectre Limited Edition
S$ 12,583
Seller
Uhrencenter Berlin
178
DE
Rolex Datejust II - 116334 - Blue Dial
Rolex Datejust II - 116334 - Blue Dial
S$ 9,462
Free shipping
Seller
wagener-gold International e.K.
632
DE
Rolex Datejust Rare Ivory Roman Dial Year 1979 Full Complete Set
Rolex Datejust Rare Ivory Roman Dial Year 1979 Full Complete Set
S$ 6,177
Seller
Asia Timepiece
SG
Rolex Gmt Master  Ref:16700 Stainless Steel Blue Red Pepsi...
Rolex Gmt Master Ref:16700 Stainless Steel Blue Red Pepsi...
S$ 11,867
Seller
La Jolla Jewelry and Collateral Loan Company
8
US
Rolex Oyster Perpetual Datejust 41 126334 NEW MODEL
Rolex Oyster Perpetual Datejust 41 126334 NEW MODEL
S$ 11,848
Seller
Filipucci Juweliers
263
NL
Omega Seamaster 300 Master Co-Axial Liquidmetal 2016 3647
Omega Seamaster 300 Master Co-Axial Liquidmetal 2016 3647
S$ 6,208
Seller
Plus Watch - Luxury Watches
2088
IT
Breitling Navitimer Heritage
Top
Breitling Navitimer Heritage
S$ 4,437
Seller
Private seller
 
RO
Rolex Oyster Submariner Gold Steel Blue Dial 40 mm (1997)
Rolex Oyster Submariner Gold Steel Blue Dial 40 mm (1997)
S$ 10,785
Seller
Kleen Edelmetalen
109
NL
Rolex DATEJUST EDELSTAHL / 18K GOLD GELBGOLD SERVICE 09/2016
Rolex DATEJUST EDELSTAHL / 18K GOLD GELBGOLD SERVICE 09/2016
S$ 6,520
Seller
Timeless Watches GmbH
86
DE
Omega Seamaster Aqua Terra Railmaster
Omega Seamaster Aqua Terra Railmaster
S$ 4,216
Free shipping
Seller
Uhrencenter Berlin
178
DE
Rolex Explorer II scat/gar art. Re352
Rolex Explorer II scat/gar art. Re352
S$ 6,863
Seller
Stroppiana SRL
208
IT
Rolex Oyster Perpetual Day-Date 18K YG 18038
Rolex Oyster Perpetual Day-Date 18K YG 18038
S$ 16,471
Seller
Phigora
63
US
Rolex - Submariner - 16610 - Men - 1990-1999
Auction
Rolex - Submariner - 16610 - Men - 1990-1999
S$ 7,844
Estimated price
Seller
Catawiki BV
 

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.