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Sinn 103 103.0619 New Steel 41mm Automatic
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
Rp. 44,778,780
Verified Dealer
94
DE
Rolex Datejust 116243-0008 Very good Gold/Steel 36mm Automatic
TOP
Rolex Datejust
Rp. 194,887,456
Verified Dealer
 
RU
Rolex Oyster Perpetual 6090 Good Rose gold 33mm Automatic
TOP
Rolex "Oyster Perpetual" aka. Bombay. Full set 18K rosé gold
Rp. 210,186,112
Verified Dealer
146
NL
Ulysse Nardin Maxi Marine Diver 263-90-7M/92 Very good Titanium 45mm Automatic
TOP
Ulysse Nardin Maxi Marine Diver
Rp. 76,763,624
Verified Dealer
66
UK
Rolex Lady-Datejust 179384 New Steel 26mm Automatic
TOP
Rolex Lady-Datejust 26, mother-of-pearl dial/10 blue sapphires
Rp. 198,938,624
Verified Dealer
45
CH
Omega Constellation 168.004 Very good Steel 36mm Automatic Indonesia, Jakarta barat
Omega Constellation omega constellation mint condition
Rp. 27,657,070
Private Seller
ID
Ulysse Nardin Perpetual Manufacture 329-10 New Platinum 43mm Automatic
TOP
Ulysse Nardin Perpetual Manufacture 43mm - Limited Edition
Rp. 508,063,072
Free shipping
Verified Dealer
505
US
Rolex Datejust 16233 Very good Gold/Steel 36mm Automatic
Rolex MINT DateJust 36mm NO HOLES Two-Tone Champagne Jubilee...
Rp. 67,685,256
Free shipping
Verified Dealer
478
US
Rolex Oyster Perpetual Very good Gold/Steel 35mm Automatic
TOP
Rolex Men's Rolex 18K & SS Oyster Perpetual 1005 Automatic,...
Rp. 91,512,368
Free shipping
Verified Dealer
640
US
Hublot Big Bang 44 mm 301.QX.1791.HR New Carbon 44mm Automatic
TOP
Hublot Big Bang Carbon Bezel Baguette 23650€ HT
Rp. 491,652,736
Free shipping
Verified Dealer
151
FR
Omega Seamaster Diver 300 M 210.22.42.20.01.004 New Gold/Steel 42mm Automatic
TOP
Omega Seamaster Diver 300M James Bond Steel Black Dial Limited...
Rp. 152,613,392
Verified Dealer
1011
BE
Sinn 103 103.031 New Steel 41mm Automatic
TOP
Sinn 103 ST
Rp. 33,812,548
Verified Dealer
94
DE
TAG Heuer Carrera Calibre 17 CV5110.FC6310 Very good Steel 41mm Automatic
TOP
TAG Heuer Carrera Calibre 17 / Full set
Rp. 56,658,868
Verified Dealer
119
PL
Jaquet-Droz Astrale J015134222 New White gold 43mm Automatic
TOP
Jaquet-Droz "The Times Zones", unique piece - no. 1/1
Rp. 386,266,720
Verified Dealer
45
CH
Hamilton Khaki Good Steel 42mm Quartz Indonesia, Bandung
Hamilton Khaki Hamilton Multi Touch H91514133 Limited Edition
Rp. 5,931,357
Private Seller
ID
Rado 56-H Very good Yellow gold 35mm Automatic
TOP
Rado Chronometre 56-H Mark I
Rp. 116,971,752
Verified Dealer
26
CH
Ulysse Nardin Marine 263-22 Good Steel 36mm Automatic
TOP
Ulysse Nardin Maxi Marine Chronometer 1846 263-22 Watch with...
Rp. 55,076,888
Free shipping
Verified Dealer
601
US
Breitling Chronomat 44 CB011012 Very good Gold/Steel 44mm Automatic
TOP
Breitling Yellow Gold 18Kt Chronograph Chrono Chronomat 44 mm
Rp. 94,949,296
Verified Dealer
519
ES
Breitling Navitimer 01 RB012012|BA49|435X|R20BA.1 New Red gold 44mm Automatic
TOP
Breitling NAVITIMER 01 ROSEGOLD RB012012 unworn 12230HT
Rp. 254,051,040
Free shipping
Verified Dealer
151
FR
Omega Seamaster Diver 300 M 212.32.41.20.04.001 New Steel 41mm Automatic
TOP
Omega Seamaster Diver James Bond Limited 2017 Commanders watch
Rp. 87,547,080
Verified Dealer
1011
BE
Rolex Day-Date 118366 Unworn Platinum 36mm Automatic
TOP
Rolex DAY-DATE Platinum | 118366 | Baguette Bezel | Full Set |
Rp. 1,060,069,056
Verified Dealer
29
DE
Hublot Classic Fusion Ultra-Thin 545.OX.2210.LR New Rose gold 45mm Manual winding
TOP
Hublot Classic Fusion 42 ultra-thin
Rp. 285,584,352
Verified Dealer
45
CH
Rolex Day-Date 36 18238 Good Yellow gold 36mm Automatic
TOP
Rolex Day-Date 36mm yellow gold - double quick from 1992
Rp. 213,841,536
Verified Dealer
76
BE
B.R.M MK44 New 44mm Automatic
TOP
B.R.M MK 44
Rp. 120,628,552
Verified Dealer
49
FR
Ulysse Nardin Marine Chronometer Manufacture 1185-126-3T/45 Very good Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer 1185-126-3T/45 Watch with...
Rp. 105,069,752
Free shipping
Verified Dealer
601
US
Omega Seamaster Aqua Terra 2512.50.00 Very good Steel 42mm Automatic
TOP
Omega 150m Chronograph Black Seamaster Aqua Terra Chrono
Rp. 60,222,888
Verified Dealer
519
ES
Breitling Chronomat 44 AB011012|B967|435X|A20BA.1 Unworn Steel 44mm Automatic
TOP
Breitling CHRONOMAT 44 AUTOMATIC AB011012
Rp. 94,857,904
Free shipping
Verified Dealer
151
FR
Breitling Transocean Chronograph RB015212/C940 New Red gold 43mm Automatic
TOP
Breitling Transocean Chronograph Red Gold Blue Dial Blue...
Rp. 191,726,288
Verified Dealer
1011
BE
Breitling Avenger II Seawolf A17331 Very good Steel 45mm Automatic
Breitling Avenger Ii Seawolf Automatic Chronometer 3000m 10000ft
Rp. 46,295,776
Verified Dealer
183
PL
Rolex Day-Date Oysterquartz 19019 Very good White gold 36mm Quartz
TOP
Rolex rare DAY DATE | 19019 | Oyster Quartz | whitegold |
Rp. 228,463,168
Verified Dealer
29
DE
Hublot Classic Fusion Ultra-Thin 515.NX.2210.LR New Titanium 45mm Manual winding
TOP
Hublot Classic Fusion 45 ultra-thin
Rp. 155,875,696
Verified Dealer
45
CH
Rolex Sea-Dweller 126600 Unworn Steel 43mm Automatic
Rolex Sea-Dweller SD43 126600 Unworn
Rp. 216,833,456
Free shipping
Verified Dealer
112
US
Rolex Sea-Dweller 126600 New Steel 43mm Automatic
Rolex Sea-Dweller LC AT 03/2020 unworn box papers
Rp. 248,549,648
Verified Dealer
450
DE
Ulysse Nardin Marine 263-22 Very good Steel 36mm Automatic
TOP
Ulysse Nardin Marine Chronometer 263-22 Watch with Stainless...
Rp. 55,076,888
Free shipping
Verified Dealer
601
US
Rolex Sea-Dweller 126600 New Steel 43mm Automatic
Rolex Sea-Dweller NEW Full Set Stickers
Rp. 249,604,688
Verified Dealer
 
PL
Rolex Datejust 126334 New Steel 41mm Automatic
Rolex Datejust 41mm 2019 Black NEW 126334
Rp. 174,551,360
Verified Dealer
262
US
Montblanc Heritage Chronométrie 112534 New Steel 40mm Automatic
TOP
Montblanc Heritage Chronométrie Quantième Annuel 112534
Rp. 41,123,368
Verified Dealer
BE
Breitling Super Avenger II A1337111/BC29/168A New Steel 48mm Automatic
Breitling Super Avenger II
Rp. 71,176,288
Verified Dealer
7
US
Rolex Oyster Perpetual 6102 Very good Yellow gold 34mm Automatic
Rolex Oyster Perpetual, bombay lugs, honeycomb dial
Rp. 131,412,008
Verified Dealer
 
DE
Chaumet Liens W23870-02A New Rose gold 33mm Automatic
TOP
Chaumet Liens 33
Rp. 112,552,824
Verified Dealer
45
CH
Rolex Datejust 126334 Unworn Steel 41mm Automatic
Rolex Datejust 41mm Fluted Wimbledon Dial Jubilee 126334 Unworn
Rp. 173,958,224
Free shipping
Verified Dealer
112
US
Rolex Daytona 116500LN Very good Steel 40mm Automatic
Rolex Daytona perfect condition box and papers
Rp. 420,353,952
Verified Dealer
450
DE
Ulysse Nardin Marine Chronometer Manufacture 1183-126 Very good Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer 1183-126 Watch with Leather...
Rp. 93,207,040
Free shipping
Verified Dealer
601
US
Omega Seamaster Diver 300 M 212.30.41.20.03.001 Very good Steel 41mm Automatic
Omega Seamaster Diver 300m Co-Axial Stainless Steel
Rp. 59,228,836
Verified Dealer
6
US
Rolex Datejust 126334 New Steel 41mm Automatic
Rolex Datejust 41mm 126334 NEW 2020 Black Dial
Rp. 172,839,728
Verified Dealer
262
US
Montblanc Heritage Chronométrie 114869 New Red gold 40mm Automatic
TOP
Montblanc Heritage Chronométrie Automatic 40mm Red Gold Case...
Rp. 59,400,424
Verified Dealer
1011
BE
Rolex Yacht-Master II 116688 Very good Yellow gold 44mm Automatic
Rolex Yacht-Master II 116688
Rp. 519,080,800
Free shipping
Verified Dealer
507
UK
Rolex Datejust II 116300 New Steel 41mm Automatic
Rolex Datejust II Stainless Steel Blue Dial Mens Watch Box/Papers
Rp. 125,405,832
Free shipping
Verified Dealer
 
US
Hublot Classic Fusion Ultra-Thin 545.NX.1270.LR New Titanium 42mm Manual winding
TOP
Hublot Classic Fusion 42 ultra-thin
Rp. 155,875,696
Verified Dealer
45
CH
Rolex Datejust 126334 Unworn Steel 41mm Automatic
Rolex Datejust 41mm Fluted Wimbledon Dial Oyster 126334 Unworn
Rp. 167,687,936
Free shipping
Verified Dealer
112
US
Rolex GMT-Master II 116758SARU Very good Yellow gold 40mm Automatic
Rolex GMT Master II Rolex factory set perfect condition box...
Rp. 2,741,539,584
Verified Dealer
450
DE
Ulysse Nardin Marine Chronometer Manufacture 1183-126-7M/61 Very good Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer 1183-126-7M/61 Watch with...
Rp. 84,733,672
Free shipping
Verified Dealer
601
US
Swiss Military 20000 Feet 1946 New Titanium 46mm Automatic
Swiss Military 20000 Feet World Record Chronograph Limited...
Rp. 72,925,440
Verified Dealer
77
DE
Rolex Sea-Dweller 126600 New Steel 43mm Automatic
Rolex Sea-Dweller 126600 NEW 2020 FULL STICKERS
Rp. 234,695,328
Verified Dealer
262
US
Cvstos CC RGR Very good Rose gold Automatic
Cvstos Eagle's Time AEK (made for AEK Athens), strong limited
Rp. 223,893,904
Verified Dealer
 
DE
Rolex Submariner Date 16610 Very good Steel 40mm Automatic
Rolex Submariner Date 16610
Rp. 135,231,472
Free shipping
Verified Dealer
507
UK
Rolex Day-Date 36 118135 Very good Rose gold 36mm Automatic
Rolex Day-Date Rose Chocolate
Rp. 308,882,208
Verified Dealer
22
DE
Chaumet Liens W23871-02A New Rose gold 33mm Automatic
TOP
Chaumet Liens 33
Rp. 146,431,296
Verified Dealer
45
CH
Omega Speedmaster Professional Moonwatch 311.92.44.51.01.003 Very good Ceramic Automatic
Omega Speedmaster Professional Moonwatch Dark Side of the Moon
Rp. 123,626,424
Free shipping
Verified Dealer
112
US
Rolex Daytona 116515LN New Rose gold 40mm Automatic
Rolex Daytona Everrose Oysterflex LC 100 unworn box and papers
Rp. 566,570,368
Verified Dealer
450
DE
Ulysse Nardin Marine Chronometer Manufacture 1185-126 Very good Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer 1185-126 Watch with 18k Rose...
Rp. 257,590,352
Free shipping
Verified Dealer
601
US
Omega Seamaster Planet Ocean Chronograph 232.30.46.51.01.003 Good Steel 46mm Automatic
Omega Ocean
Rp. 67,582,952
Free shipping
Verified Dealer
66
JP
Rolex Submariner Date 116610LN Good Steel 40mm Automatic
Rolex Submariner Date, 116610LN, Full Set, 2017, LC100
Rp. 186,243,168
Verified Dealer
44
DE
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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.