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TOP
Omega 123.10.38.22.01.001 CONSTELLATION
Price on request
Verified Dealer
10
HK
TOP
Breitling Crosswind Racing 18K/SS Special Mother of Pearl Dial
Rp. 67,308,008
Free shipping
Verified Dealer
183
US
TOP
IWC Da Vinci Perpetual Calendar Chronograph Rattrapante 3754-003
Rp. 218,381,872
Free shipping
Verified Dealer
183
US
TOP
Ulysse Nardin Marine Chronometer Manufacture
Rp. 70,246,912
Verified Dealer
AE
TOP
Rolex Datejust Pearlmaster 39, official price 112.000 CHF
Rp. 1,054,937,792
Verified Dealer
28
CH
TOP
Rolex Pearlmaster White Gold MOP Diamond Dial Luxus 34mm
Rp. 268,800,480
Verified Dealer
511
DE
TOP
Chopard L.U.C Pro One Diver black dial 42,5 - TOP CONDITION
Rp. 51,391,348
Free shipping
Verified Dealer
451
NL
TOP
Chopard Manufacture Caliber Mille Miglia 01.01-C GT XL 8565
Rp. 47,359,104
Verified Dealer
371
ES
TOP
Hublot Big Bang Carbon Bezel Baguette 23650€ HT
Rp. 425,362,272
Free shipping
Verified Dealer
132
FR
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
Rp. 38,741,172
Verified Dealer
62
DE
Omega Speedmaster Professional Moonwatch 42mm Stahl
Rp. 46,647,532
Verified Dealer
28
DE
Rolex Datejust 126281RBR
Rp. 241,949,168
Free shipping
Verified Dealer
417
UK
Rolex Sea-Dweller
Rp. 121,856,888
Verified Dealer
 
US
TOP
Hublot Classic Fusion Ultra-Thin 42, official price 11.900 CHF
Rp. 115,596,752
Verified Dealer
28
CH
Rolex Daytona Platinum Diamond 40mm Watch 116576TBR
Rp. 2,293,762,304
Free shipping
Verified Dealer
191
US
Omega Speedmaster Moonwatch Apollo 11 50th Anniversary NEW
Rp. 200,691,120
Verified Dealer
149
US
Rolex Day-Date 40mm Rose Gold President White Roman Dial
Rp. 422,915,072
Free shipping
Verified Dealer
12
US
TOP
Breitling NAVITIMER 01 ROSEGOLD RB012012 unworn 12230HT
Rp. 219,796,848
Free shipping
Verified Dealer
132
FR
F.P.Journe Chronometre Bleu Chronometre Bleu Tantalum Blue...
Rp. 537,603,904
Verified Dealer
346
US
Rolex Datejust--126334--09-2019--LC-EU--DARK-RHODIUM--NEW--UNW...
Rp. 150,220,864
Verified Dealer
28
NL
Rolex Oyster Perpetual Bubble Back 3372
Rp. 76,169,184
Free shipping
Verified Dealer
417
UK
Rolex Air King
Rp. 70,963,720
Verified Dealer
 
US
TOP
Hublot Classic Fusion Ultra-Thin 42, official price 27.300 CHF
Rp. 260,110,768
Verified Dealer
28
CH
Rolex Datejust 41 Steel & White Gold Blue Diamond Jubilee ...
Rp. 172,018,896
Free shipping
Verified Dealer
191
US
Rolex Datejust 41 126334
Rp. 143,361,040
Verified Dealer
149
US
Omega Seamaster Diver 300 M
Rp. 42,744,352
Verified Dealer
10
UK
TOP
Breitling CHRONOMAT 44 GMT AUTOMATIC AB042011 unworn 4750ht
Rp. 85,230,576
Free shipping
Verified Dealer
132
FR
Rolex 116515LN Cosmograph Daytona Ceramic 18K Everose Gold /...
Rp. 448,003,264
Verified Dealer
346
US
TAG Heuer Carrera Calibre 1 Limited Edition Clou de Paris...
Rp. 34,772,180
Verified Dealer
511
DE
Rolex Submariner Kermit 16610LV
Rp. 536,768,704
Free shipping
Verified Dealer
417
UK
Rolex 16610LV Submariner Date 'The First' - Rare Y Serial Fat...
Rp. 492,859,424
Free shipping
Verified Dealer
107
UK
TOP
Breguet Secret de la Reine, new, official price 90.000 CHF
Rp. 794,812,608
Verified Dealer
28
CH
Rolex Datejust 41mm Stainless Steel Blue Diamond Dial Watch...
Rp. 150,514,752
Free shipping
Verified Dealer
191
US
Rolex Datejust 41mm Basel Release Blue Roman 2019
Rp. 141,640,704
Verified Dealer
149
US
Omega Seamaster Diver 300 M
Rp. 44,715,792
Verified Dealer
10
UK
Omega Seamaster Planet Ocean 44 mm Blue (It´s New)
Rp. 73,529,168
Verified Dealer
92
ES
Tudor 41mm Heritage Black Bay Chronograph Watch 79350
Rp. 50,176,364
Verified Dealer
9
US
Rolex 16520 Daytona Zenith Movement White Dial SS (31994)
Rp. 342,632,896
Verified Dealer
346
US
Rolex GMT-Master Vintage UAE Air Force 1675
Rp. 1,702,605,312
Free shipping
Verified Dealer
417
UK
Breitling Bentley Motors
Rp. 66,413,436
Verified Dealer
1176
NL
TOP
Rolex Lady-Datejust 28, official price 15.800 CHF
Rp. 187,853,760
Verified Dealer
28
CH
Rolex Datejust 41 Steel & White Gold Black Diamond Jubilee 126334
Rp. 157,682,816
Free shipping
Verified Dealer
191
US
Rolex Datejust 41mm 2019 NEW 126334
Rp. 140,493,824
Verified Dealer
149
US
Omega Seamaster Diver 300 M
Rp. 37,188,484
Verified Dealer
10
UK
Omega Seamaster Planet Ocean 600M Chronograph
Rp. 86,179,344
Verified Dealer
10
EE
Omega Seamaster Planet Ocean 44 mm Black (It´s NEW)
Rp. 73,529,168
Verified Dealer
92
ES
Rolex 1019 Vintage Milgauss Silver Dial (32319)
Rp. 414,313,376
Verified Dealer
346
US
Rolex GMT-Master Pepsi 16700
Rp. 188,182,688
Free shipping
Verified Dealer
417
UK
Omega Seamaster Planet Ocean
Rp. 61,645,248
Free shipping
Verified Dealer
118
US
TOP
Rolex Datejust Pearlmaster 34, official price 32.200 CHF
Rp. 303,464,992
Verified Dealer
28
CH
Ulysse Nardin Maxi Marine Diver
Rp. 256,616,272
Verified Dealer
29
US
Rolex Datejust 41mm 126334 2019 Fluted Bezel NEW
Rp. 140,852,224
Verified Dealer
149
US
Omega Seamaster Planet Ocean
Rp. 54,035,316
Verified Dealer
10
UK
Rolex Gmt-Master II Pepsi
Rp. 149,430,224
Verified Dealer
1176
NL
Breitling Superocean Heritage 46
Rp. 45,066,260
Free shipping
Verified Dealer
676
DE
Panerai PAM111 Luminor Marina SS Manual Wind 44MM (32360)
Rp. 60,211,636
Verified Dealer
346
US
Rolex Daytona APH 116520
Rp. 385,326,464
Free shipping
Verified Dealer
417
UK
Breitling Superocean II 44 A17392D7.BD68.162A, Arabisch, 2017,...
Rp. 50,758,844
Verified Dealer
6
DE
TOP
Breguet Classique 38, official price 26.700 CHF
Rp. 252,885,056
Verified Dealer
28
CH
Omega Aqua Terra Co-Axial GMT Chronograph
Rp. 113,140,032
Verified Dealer
240
DE
Rolex Datejust Pearlmaster 39 Fancy Orange Bezel Gold 86348SAJOR
Rp. 817,143,552
Free shipping
Verified Dealer
191
US
Rolex - Datejust 41
Rp. 155,007,888
Verified Dealer
 
DE
Rolex Daytona 116520
Rp. 234,818,944
Verified Dealer
1176
NL
Rolex Daydate
Rp. 205,565,392
Free shipping
Verified Dealer
676
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.