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Rolex GMT-Master II
Rs. 1,424,271
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
371
UK
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Breitling Emergency K56121.1 Yellow Gold - Box & Papers 2004
Rs. 1,456,263
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Mark Worthington Jewellers
204
UK
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A. Lange & Söhne Taschenuhr A. Lange & Söhne Gold savonnette...
Rs. 810,626
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Antiquitäten carsten berger
9
DE
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Omega Globemaster
Rs. 313,312
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Ken's Watches
6
HK
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Breguet Marine
Rs. 858,969
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Chronometrie Stäuble AG
18
CH
Fossil Casio CH2951
Rs. 6,000
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Private Seller
IN
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
Rs. 193,194
Seller
Classic Watch
57
DE
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Casio GMW-B5000GD-9 G-SHOCK
Rs. 43,291
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First Advanced Watches
100
ES
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Breitling Edition Special Limited A 25 Exemplaires - G34360
Rs. 7,885,467
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Pawndeluxe
401
NL
Omega Constellation
Rs. 126,491
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SHRI GANESH WATCH CO.
IN
TOP
Omega Seamaster Planet Ocean Master 43,5 PyeongChang 2018 Limited
Rs. 430,547
Seller
Uhren2000 GmbH
429
DE
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Rolex Oyster Perpetual Date Vintage 34mm Yellow Gold Ref. 1503
Rs. 615,066
Seller
Orologeria Duomo Milano
110
IT
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Eberhard & Co. Chrono 120 ÉME Aniversario Edicion Limitada
Rs. 686,036
Seller
CANTELI JOYEROS SL
43
ES
TOP
Breguet Secret de la Reine, new, official retail price 90.000 CHF
Rs. 3,724,588
Seller
Chronometrie Stäuble AG
18
CH
Omega Seamaster 2254.50.00 - Mens 2002 - VH6VW5
Rs. 183,621
Seller
EST 1897
493
UK
Omega vintage 1950 solid 18k gold chronometer automatic 2518
Rs. 227,883
Seller
Antique Watch Company
14
UK
Rolex 118209 | Weißgold | Oysterband | LC100 | Rolex Service
Rs. 1,340,529
Seller
nobeluhren-store.de
23
DE
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Ulysse Nardin 41 Maxi Marine Chronometer Power Reserve Display...
Rs. 275,991
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Pawndeluxe
401
NL
Omega Seamaster Chronometer
Rs. 87,187
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SHRI GANESH WATCH CO.
IN
Omega Seamaster Diver 300 M Full Set
Rs. 303,590
Seller
LUXUS-PORT
127
DE
Rolex Datejust 41 Ref. 126334
Rs. 666,322
Seller
Steiner Maastricht
332
NL
Patek Philippe 10 Days
Rs. 3,351,324
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A. Grimmeissen Uhren An- und Verkauf
632
DE
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Rolex Lady-Datejust Pearlmaster 29
Rs. 3,581,307
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Chronometrie Stäuble AG
18
CH
Chopard 161926-5001 L.U.C Quattro - 9 Day Power Reserve
Rs. 1,292,800
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Watch Club
91
UK
Breitling :大進洋行
Rs. 442,389
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Daisinyoko & Co.
 
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Rolex DAY-DATE 40 | 228206 | Platin Ice Blue | Full Set 2018 |...
Rs. 3,863,879
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nobeluhren-store.de
23
DE
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Omega De Ville Prestige Co-Axial 18K Red Gold 36.5 MM Caliber...
Rs. 256,278
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Pawndeluxe
401
NL
Omega Constellation Day-Date
Rs. 86,062
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SHRI GANESH WATCH CO.
IN
Omega Seamaster Diver 300 M 2014 Like NEW, Full SET
Rs. 236,564
Seller
LUXUS-PORT
127
DE
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Rs. 323,304
Seller
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332
NL
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Rs. 2,720,486
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A. Grimmeissen Uhren An- und Verkauf
632
DE
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Tiffany Atlas 42, new, official retail price 16.200 CHF
Rs. 644,406
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Chronometrie Stäuble AG
18
CH
Rolex 126600 Sea-Dweller 43 Red Writing - Mark I Anniversary...
Rs. 1,012,328
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91
UK
Omega コンステレーション コーアクシャル 腕時計123.25.38.22.02.001 自動巻 K18PG SSピンク...
Rs. 390,853
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Daisinyoko & Co.
 
JP
Rolex DAYTONA | 116506 | Platin Ice Blue | Full Set 2015 | LC100
Rs. 4,810,135
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nobeluhren-store.de
23
DE
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Blancpain Villeret Ultra Thin White Dial Chronometer CAL 64.1...
Rs. 244,449
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Pawndeluxe
401
NL
Breitling Navitimer 1 B01 Chronograph
Rs. 595,353
Seller
The Watch Artisans
23
ES
Omega Seamaster Diver 300 M - Exclusiv Armband + Papiere
Rs. 134,053
Seller
LUXUS-PORT
127
DE
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Rs. 654,494
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30
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Rs. 1,163,106
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632
DE
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Rs. 357,844
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18
CH
Rolex 1002 Oyster Perpetual 34mm - 1968 Chronometer Certificate
Rs. 407,561
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91
UK
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Rolex DAY-DATE Platinum | 118366 | Baguette Bezel | Full Set |
Rs. 4,573,571
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nobeluhren-store.de
23
DE
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Chopard L.U.C PRO ONE 42.5 BLACK DIAL DEEP DIVER - 1689121
Rs. 244,449
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401
NL
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Rs. 417,141
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114
DE
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19
US
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Rs. 469,185
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26
DE
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Rs. 1,241,961
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632
DE
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Rolex Oyster Perpetual Date 34
Rs. 447,753
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18
CH
Panerai PAM 00382 382 Bronzo full set
Rs. 1,829,428
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MYTHICWATCH
 
FR
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Rs. 259,960
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JP
Rolex 16520 A-Serie Zenith DAYTONA 1999 Full Set
Rs. 2,286,786
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nobeluhren-store.de
23
DE
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Hermès Clipper XL Ø 44 mm Automatic Chronograph - CP1910
Rs. 181,366
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Pawndeluxe
401
NL
TAG Heuer Monaco LS Chronograph Kaliber 12 – 9/2014 Box und...
Rs. 361,943
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Watchplanet
114
DE
Tudor Black Bay Chrono 79350
Rs. 244,333
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Guarded Crown
19
US
Breitling Transocean Chrono Unitime
Rs. 488,505
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M.Dodt GmbH & Co. KG
21
DE
Rolex GMT Master II
Rs. 1,088,194
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A. Grimmeissen Uhren An- und Verkauf
632
DE
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Breguet Reine de Naples
Rs. 1,647,014
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Chronometrie Stäuble AG
18
CH
Rolex Explorer II 16550 punched papers 1989 & revision 2011
Rs. 938,371
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MYTHICWATCH
 
FR
Chopard 腕時計 メンズ腕時計 時計 ショパール モナコグランプリ GPMH 2016 レース エディション...
Rs. 259,960
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Daisinyoko & Co.
 
JP
Rolex 1665 SEA-DWELLER - 1978 - Rolex Service Paper 2001
Rs. 1,261,675
Seller
nobeluhren-store.de
23
DE
TOP
Omega Seamaster Olympic Games London Co-Axial Limited Edition
Rs. 228,679
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401
NL
TAG Heuer Monaco Ref.: CW2118 limitierte Auflage
Rs. 314,630
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114
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.