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Tudor Black Bay Fifty-Eight M79010SG-0001 New Silver 39mm Automatic
TOP
Tudor Black Bay Fifty-Eight 925
Rp.71,068,097
Professional dealer
6
MY
Ulysse Nardin Marine Chronometer Manufacture 1183-126-3/42 New Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer Manufacture
Rp.118,054,932
Professional dealer
7
ES
Rolex Submariner Date 16610 COMEX M Very good Steel 40mm Automatic
TOP
Rolex Submariner 16610 COMEX M series full set 2008
Rp.1,493,516,547
Professional dealer
20
MC
Seiko King 5626-7041 Fair Steel 36mm Automatic Indonesia, Jakarta
Seiko King Seiko Chronometer KS 5626-7041 Blue Dial Year 1973
Rp.8,400,000
Free shipping
Professional dealer
 
ID
Omega Constellation 14393 Very good Gold/Steel 36mm Automatic Indonesia, Jakarta
Omega Constellation
Rp.23,534,025
Private Seller
ID
Omega Constellation 2652 SC Very good Yellow gold 35mm Automatic Indonesia, Jakarta
Omega Constellation Waffle Dial Patina
Rp.28,016,841
Private Seller
ID
Omega Constellation Day-Date 168.029 Good Gold/Steel 35mm Automatic
TOP
Omega Constellation Cal. 751 18K Gold Capped Vintage 1970
Rp.34,707,518
Professional dealer
22
US
Omega Speedmaster Professional Moonwatch 310.20.42.50.01.001 Unworn Gold/Steel 42mm Manual winding
Omega Speedmaster Moonwatch Apollo 11 Co-Axial Stahl / Gold ...
Rp.250,877,218
Sold by Chrono24
DE
Omega Constellation Ladies 123.20.35.20.58.001 New Gold/Steel 35mm Automatic
TOP
Omega Constellation 123.20.35.20.58.001 CO‑AXIAL 35 MM
Rp.86,551,873
Professional dealer
893
US
Cartier Santos 100 W20073X8 Very good Steel 41mm Automatic
TOP
Cartier Santos 100 Stainless Steel Iced Out Watch W20073X8
Rp.173,523,128
Professional dealer
845
US
Mido Commander 8269 Good Steel 37mm Automatic Indonesia, Jakarta
Mido Vintage Mido Ocean Star Datoday Commander Day Date circa 80s
Rp.5,770,125
Free shipping
Professional dealer
9
ID
Ulysse Nardin A.261 Good Steel 34mm Automatic
TOP
Ulysse Nardin Vintage Chronometer 36000
Rp.37,284,336
Professional dealer
39
CH
Omega Constellation Day-Date 168019 Good Gold/Steel 35mm Automatic Indonesia, Jakarta
Omega Constellation Gold Cap 168.019 Year 1969 Vintage
Rp.15,300,000
Free shipping
Professional dealer
 
ID
Louis Vuitton Q212G Fair Steel 38mm Automatic Indonesia, Batam,
Louis Vuitton Speedy Chronograph Q212G SS Auto Men's Watch(F5195)
Rp.26,094,587
Private Seller
ID
Zenith 96.2062.405/27.C707 Very good Palladium 45.5mm Automatic
TOP
Zenith Stratos Pole2Pole Fly-back Palladium' Coated SS -...
Rp.73,836,773
Free shipping
Professional dealer
985
NL
Omega Constellation 168.005 Fair Gold/Steel 34.0mm Automatic
TOP
Omega Constellation Cal. 564
Rp.23,658,958
Professional dealer
22
US
Omega Seamaster Planet Ocean 2900.50.91 Very good Steel 45.5mm Automatic
Omega Seamaster Planet Ocean Big Size Automatik Stahl Herrenuh...
Rp.71,319,610
Sold by Chrono24
DE
Rolex Datejust 126334 Very good Steel 41mm Automatic
Rolex Datejust 41 Ref: 126334 Blue Dial with Box and Papers
Rp.181,491,395
Free shipping
Professional dealer
8
US
Cartier Santos 100 W20090X8 Very good Steel 41mm Automatic
TOP
Cartier Santos 100 Chronograph Stainless Steel Iced Out Watch...
Rp.231,368,991
Professional dealer
845
US
Mido Commander 8439 Very good Gold/Steel 38mm Automatic Indonesia, Jakarta
Mido Rare Vintage Mido Commander Day Date Mido 8439 swiss made
Rp.7,953,806
Free shipping
Professional dealer
9
ID
Ulysse Nardin Marine Chronometer 41mm 263-66 Very good Steel 41mm Automatic
TOP
Ulysse Nardin Marine Chronometer 41 mm
Rp.53,733,308
Professional dealer
39
CH
Tudor Black Bay Chrono 79350 Good Steel 41mm Automatic Indonesia, Jakarta
Tudor Black Bay Chrono 79350 Fullset 2019
Rp.55,000,000
Free shipping
Professional dealer
 
ID
Hublot Big Bang 44 mm 301.SM.1770.RX Good Steel 42mm Automatic Indonesia, 12220
Hublot Big Bang 42 mm
Rp.122,383,289
Private Seller
ID
Rolex Lady-Datejust Pearlmaster 80285 New Rose gold 29mm Automatic
TOP
Rolex Lady-Datejust Pearlmaster, new, 260 diamonds on bezel...
Rp.798,871,739
Professional dealer
58
CH
Omega Seamaster Diver 300 M 2538.20.00 Very good Steel 41mm Automatic Indonesia, Tangerang
Omega Seamaster 300M GMT White Wave Dial
Rp.42,500,000
Professional dealer
 
ID
Vacheron Constantin Overseas 42050-72050/1 Very good Steel 35mm Automatic
Vacheron Constantin Overseas Chronometer Automatik Herrenuhr...
Rp.141,800,167
Sold by Chrono24
DE
Omega Speedmaster 324.30.38.50.02.001 Very good Steel 38mm Automatic
Omega Speedmaster 38 Co-Axial Chronograph Ref: 324.30.38.50.02...
Rp.51,338,203
Free shipping
Professional dealer
8
US
Breitling Navitimer AB01213B1B1A1 New Steel 43mm Automatic
TOP
Breitling NAVITIMER B01 CHRONOGRAPH43 BLACK MOP SPECIAL...
Rp.144,424,245
Free shipping
Professional dealer
165
JP
Rolex 1803 1802 1804 Good White gold 36mm Automatic
TOP
Rolex 18k White gold 1803 Day-Date with swiss only dial from...
Rp.323,874,937
Professional dealer
35
NL
Rolex Submariner (No Date) 124060 New Steel 41mm Automatic
Rolex Submariner No Date 41 – Neu & Teilverklebt – 10/21 – Box...
Rp.207,246,397
Professional dealer
16
DE
Rolex GMT-Master 1675 Very good Steel 40mm Automatic
Rolex GMT-Master PEPSI VINTAGE # 400
Rp.335,453,885
Free shipping
Professional dealer
215
DE
Rolex Sea-Dweller Deepsea 116660 D New Steel 44mm Automatic
Rolex Deep Sea 116660 D Blu NOS 2017
Rp.302,059,526
Professional dealer
20
MC

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.