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Omega Seamaster 300 233.30.41.21.01.001 Very good Steel 41mm Automatic
Omega Seamaster 300 Master Co-Axial Ref. 233.30.41.21.01.001 B&P
Rp.74,842,740
+ Rp.1,480,406 for shipping
Sold by Chrono24
DE
TAG Heuer Grand Carrera CAV511E.BA0902 Very good Steel 43mm Automatic Indonesia, Surabaya
TAG Heuer Grand Carrera
Rp.42,000,000
Excl. shipping
Private Seller
ID
Omega Speedmaster Professional Moonwatch 310.30.42.50.01.001 New Steel 42mm Manual winding Indonesia, Jakarta
Omega Speedmaster Moonwatch Co-Axial Master Chronometer Hesalite
Rp.130,891,604
Free shipping
Professional dealer
4.92 (15)
SG
Mido Commander 8299 Good Steel 38mm Automatic Indonesia, Jakarta
Mido Vintage rare Mido Commander DayDate Mido 8299 Gold Plated...
Rp.10,337,823
Free shipping
Professional dealer
4.88 (12)
ID
Seiko King 5626-7041 Good Steel 36mm Automatic Indonesia, Jakarta
Seiko King Seiko KS 5626-7041 Chronometer Blue Dial Year 1974...
Rp.9,400,000
Free shipping
Professional dealer
4.93 (11)
ID
Rolex Sea-Dweller Deepsea 126660 Unworn Steel 44mm Automatic
Rolex Sea-Dweller Deepsea 2021 Complete Set UNWORN
Rp.252,138,967
+ Rp.1,628,447 for shipping
Professional dealer
4.96 (55)
UK
Rolex Datejust 41 126334 Very good Steel 41mm Automatic
Rolex Datejust 41 Wimbledon Dial 126334 Jubilee Bracelet White...
Rp.268,940,394
+ Rp.7,895,498 for shipping
Professional dealer
4.80 (7)
IT
Rolex Daytona 16528 Unworn Yellow gold 40mm Automatic
Rolex Zenith Daytona 750 Gold 16528 MOP Perlmutt Diamanten...
Rp.1,313,448,958
+ Rp.2,714,077 for shipping
Professional dealer
4.93 (121)
DE
Rolex Submariner Date 126610LN New Steel 41mm Automatic
Rolex Submariner Date | LC100 | NEU | 2021 | FullSet
Rp.284,566,900
+ Rp.4,934,686 for shipping
Professional dealer
4.96 (249)
DE
Omega Seamaster Diver 300 M 2531.80.00 Very good Steel 41mm Automatic
Omega Seamaster 300M Chronometer Automatik Edelstahl Herrenuhr...
Rp.43,589,727
+ Rp.1,480,406 for shipping
Sold by Chrono24
DE
Omega Constellation 2652 SC Very good Yellow gold 35mm Automatic Indonesia, Jakarta
Omega Constellation Waffle Dial Patina
Rp.32,162,010
Excl. shipping
Private Seller
ID
Rolex Sea-Dweller 4000 116600 Very good Steel 40mm Automatic
Rolex Sea-Dweller 4000 aus 2014 Ceramic neuer Service
Rp.230,203,108
+ Rp.3,273,342 for shipping
Professional dealer
4.91 (250)
DE
Rolex GMT-Master 1675 Good Steel 40mm Automatic
Rolex GMT-Master Pepsi 1675 Mark 3 Radial Dial Jubilee Serial...
Rp.509,243,160
+ Rp.11,744,553 for shipping
Professional dealer
4.94 (147)
DE
Seiko King 5626-7040 Good Steel 36mm Automatic Indonesia, Jakarta
Seiko King Seiko KS 5626-7040 Chronometer Grey Dial Year 1971...
Rp.11,150,000
Free shipping
Professional dealer
4.93 (11)
ID
Rolex Submariner Date 16610 Fair Steel 40mm Automatic
Rolex Submariner Date Vintage Beautiful Patina Unpolished
Rp.237,208,385
+ Rp.1,628,447 for shipping
Professional dealer
4.96 (55)
UK
Rolex Submariner (No Date) 124060 New Steel 41mm Automatic
Rolex NEW 2021 - Submariner No Date 124060
Rp.233,575,143
+ Rp.4,112,239 for shipping
Professional dealer
4.99 (55)
FR
Rolex Submariner Date 16610 COMEX M Very good Steel 40mm Automatic
Rolex Submariner 16610 COMEX M series full set 2008
Rp.1,562,650,608
+ Rp.9,869,372 for shipping
Professional dealer
4.92 (27)
MC
Rolex Submariner Date 126610LN New Steel 41mm Automatic
Rolex Submariner Date | LC100 | NEU | 2021 | FullSet
Rp.277,987,319
+ Rp.4,934,686 for shipping
Professional dealer
4.96 (249)
DE
Omega Globemaster 130.30.39.21.03.001 Very good Steel 39mm Automatic
Omega Constellation Globemaster Co-Axial Ref. 130.30.39.21.03....
Rp.81,422,321
+ Rp.1,480,406 for shipping
Sold by Chrono24
DE
TAG Heuer Grand Carrera CAV511E.BA0902 Very good Steel 43mm Automatic Indonesia, Surabaya
TAG Heuer Grand Carrera
Rp.42,000,000
Excl. shipping
Private Seller
ID
Rolex Sea-Dweller 126603 Very good Gold/Steel 43mm Automatic
Rolex Sea-Dweller full Set 2019 Steel Gold
Rp.295,998,923
+ Rp.3,273,342 for shipping
Professional dealer
4.91 (250)
DE
Rolex Daytona 116520 Very good Steel 40mm Automatic
Rolex Daytona Citrus Lemon Dial Super Rare LC100 Collectors...
Rp.2,960,811,678
+ Rp.39,148,508 for shipping
Professional dealer
4.94 (147)
DE
Seiko King 5626-7040 Good Steel 36mm Automatic Indonesia, Jakarta
Seiko King Seiko KS Chronometer 5626-7040 White Dial Year 1970...
Rp.10,200,000
Free shipping
Professional dealer
4.93 (11)
ID
Rolex Yacht-Master 37 268622 Very good Steel 37mm Automatic
Rolex Yacht-Master 37 2019 Model Mint
Rp.202,699,954
+ Rp.1,628,447 for shipping
Professional dealer
4.96 (55)
UK
Rolex Yacht-Master 40 Very good Rose gold 40mm Automatic
Rolex Yachtmaster 116655 Rose Gold 40mm Oysterflex W/ Papers
Rp.468,879,332
+ Rp.1,462,064 for shipping
Professional dealer
4.87 (69)
US
Omega Seamaster Planet Ocean 215.92.46.22.03.001 Unworn Ceramic 45.5mm Automatic
Omega Seamaster Planet Ocean "Big Blue"
Rp.137,440,457
+ Rp.5,932,682 for shipping
Professional dealer
5.00 (6)
UK
Rolex Submariner Date 126610LN New Steel 41mm Automatic
Rolex Submariner Date | NEU | 12/2021 | FullSet
Rp.287,856,691
+ Rp.4,934,686 for shipping
Professional dealer
4.96 (249)
DE
Breitling Chronomat Evolution B13356 Very good Gold/Steel 44mm Automatic
Breitling Chronomat Evolution Stahl / Gold MOP Automatik Ref....
Rp.50,169,309
+ Rp.1,480,406 for shipping
Sold by Chrono24
DE
Rolex Submariner Date 16610 Very good Steel 40mm Automatic
Rolex Submariner 16610 military NATO 1994 S series
Rp.575,713,382
+ Rp.9,869,372 for shipping
Professional dealer
4.92 (27)
MC
Rolex Datejust 36 116200 Very good Steel 36mm Automatic
Rolex Datejust M Serie 116200 full Set 2008 white
Rp.120,899,810
+ Rp.3,273,342 for shipping
Professional dealer
4.91 (250)
DE

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.