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Ulysse Nardin Maxi Marine Diver 263-90-7M/92 Very good Titanium 45mm Automatic
TOP
Ulysse Nardin Maxi Marine Diver
Rs. 355,137
Verified Dealer
66
UK
Ulysse Nardin Marine Chronometer Manufacture 1183-126-3/43 Very good Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer Manufacture
Rs. 380,504
Verified Dealer
84
CZ
Urwerk UR-210 UR-210BPT Royal Hawk Very good Platinum 53.6mm Automatic
TOP
Urwerk UR-210 BPT Royal Hawk.
Rs. 9,647,279
Verified Dealer
13
US
Sinn 103 103.0619 New Steel 41mm Automatic
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
Rs. 207,163
Verified Dealer
93
DE
Rolex Pearlmaster 81208 New Yellow gold 34mm Automatic
TOP
Rolex Datejust Pearlmaster 34
Rs. 1,745,450
Verified Dealer
45
CH
Ulysse Nardin Perpetual Manufacture 329-10 New Platinum 43mm Automatic
TOP
Ulysse Nardin Perpetual Manufacture 43mm - Limited Edition
Rs. 2,313,804
Free shipping
Verified Dealer
503
US
Hublot Big Bang 44 mm 301.QX.1791.HR New Carbon 44mm Automatic
TOP
Hublot Big Bang Carbon Bezel Baguette 23650€ HT
Rs. 2,274,569
Free shipping
Verified Dealer
150
FR
Rado 56-H Very good Yellow gold 35mm Automatic
TOP
Rado Chronometre 56-H Mark I
Rs. 539,212
Verified Dealer
26
CH
Rolex Oyster Perpetual Very good Gold/Steel 35mm Automatic
TOP
Rolex Men's Rolex 18K & SS Oyster Perpetual 1005 Automatic,...
Rs. 416,762
Free shipping
Verified Dealer
640
US
Patek Philippe Chronograph Good Manual winding
TOP
Patek Philippe Very rare antique 1875 Split Chronograf
Rs. 844,719
Verified Dealer
114
PL
Sinn 103 103.031 New Steel 41mm Automatic
TOP
Sinn 103 ST
Rs. 156,429
Verified Dealer
93
DE
Tissot Touch T075.220.11.106.00 New Steel 39,5mm Quartz
TOP
Tissot Touch Solar Mother Diamond
Rs. 64,178
Verified Dealer
160
ES
Ulysse Nardin Marine 263-22 Very good Steel 36mm Automatic
TOP
Ulysse Nardin Marine Chronometer 263-22 Watch with Stainless...
Rs. 250,829
Free shipping
Verified Dealer
596
US
Breguet GJ24BB8548DDC3 New White gold Automatic
TOP
Breguet Secret de la Reine
Rs. 3,990,171
Verified Dealer
45
CH
Breitling Chronomat 44 CB011012 Very good Gold/Steel 44mm Automatic
TOP
Breitling Yellow Gold 18Kt Chronograph Chrono Chronomat 44 mm
Rs. 439,271
Verified Dealer
515
ES
Breitling Navitimer 01 RB012012|BA49|435X|R20BA.1 New Red gold 44mm Automatic
TOP
Breitling NAVITIMER 01 ROSEGOLD RB012012 unworn 12230HT
Rs. 1,175,335
Free shipping
Verified Dealer
150
FR
Rolex Day-Date 36 18238 Good Yellow gold 36mm Automatic
TOP
Rolex Day-Date 36mm yellow gold - double quick from 1992
Rs. 989,311
Verified Dealer
76
BE
Rolex Day-Date 118366 Unworn Platinum 36mm Automatic
TOP
Rolex DAY-DATE Platinum | 118366 | Baguette Bezel | Full Set |
Rs. 4,904,276
Verified Dealer
29
DE
TAG Heuer Carrera Calibre 17 CV5110.FC6310 Very good Steel 41mm Automatic
TOP
TAG Heuer Carrera Calibre 17 / Full set
Rs. 262,125
Verified Dealer
114
PL
Omega De Ville Prestige 424.53.40.21.02.002 Very good Yellow gold 39.5mm Automatic
TOP
Omega De Ville Prestige Co-Axial Power Reserve Yellow Gold
Rs. 503,111
Free shipping
Verified Dealer
624
NL
Ulysse Nardin Marine 263-22 Good Steel 36mm Automatic
TOP
Ulysse Nardin Maxi Marine Chronometer 1846 263-22 Watch with...
Rs. 250,829
Free shipping
Verified Dealer
596
US
Hublot Classic Fusion Ultra-Thin 545.OX.2210.LR New Rose gold 45mm Manual winding
TOP
Hublot Classic Fusion 42 ultra-thin
Rs. 1,316,477
Verified Dealer
45
CH
Omega Seamaster Aqua Terra 2512.50.00 Very good Steel 42mm Automatic
TOP
Omega 150m Chronograph Black Seamaster Aqua Terra Chrono
Rs. 278,614
Verified Dealer
515
ES
Breitling Chronomat 44 AB011012|B967|435X|A20BA.1 Unworn Steel 44mm Automatic
TOP
Breitling CHRONOMAT 44 AUTOMATIC AB011012
Rs. 438,848
Free shipping
Verified Dealer
150
FR
Zenith El Primero 36'000 VpH 03.2043.400/25.C703 Very good Steel 42mm Automatic
TOP
Zenith El Primero (Limited Edition)
Rs. 407,562
Verified Dealer
1489
ES
Rolex Day-Date Oysterquartz 19019 Very good White gold 36mm Quartz
TOP
Rolex rare DAY DATE | 19019 | Oyster Quartz | whitegold |
Rs. 1,056,956
Verified Dealer
29
DE
Omega Constellation 168.059 Good Steel 34mm Automatic India, MUMBAI
Omega Constellation
Rs. 49,999
Verified Dealer
16
IN
B.R.M MK44 New 44mm Automatic
TOP
B.R.M MK 44
Rs. 558,073
Verified Dealer
49
FR
Rolex Oyster Perpetual 6102 Very good Yellow gold 34mm Automatic
Rolex Oyster Perpetual, bombay lugs, honeycomb dial
Rs. 607,961
Verified Dealer
 
DE
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...
Rs. 478,505
Free shipping
Verified Dealer
596
US
Jaquet-Droz Astrale J015134222 New White gold 43mm Automatic
TOP
Jaquet-Droz "The Times Zones", unique piece - no. 1/1
Rs. 1,780,599
Verified Dealer
45
CH
Rolex Submariner (No Date) 6538 Very good Steel 38mm Automatic
TOP
Rolex Submariner 6538 BIG CROWN 2-LINER 1956
Price on request
Verified Dealer
11
CH
Rolex GMT-Master II 116758SARU Very good Yellow gold 40mm Automatic
Rolex GMT Master II Rolex factory set perfect condition box...
Rs. 12,683,386
Verified Dealer
449
DE
Rolex Yacht-Master II 116688 Very good Yellow gold 44mm Automatic
Rolex Yacht-Master II 116688
Rs. 2,379,978
Free shipping
Verified Dealer
504
UK
Rolex Sea-Dweller 126600 New Steel 43mm Automatic
Rolex Sea-Dweller NEW Full Set Stickers
Rs. 1,161,337
Verified Dealer
 
PL
Breitling Colt Automatic A17388 Good Steel 44mm Automatic
Breitling Colt Automatic 44mm A17388
Rs. 153,971
Free shipping
Verified Dealer
104
US
Rolex Sea-Dweller 126600 Very good Steel 43mm Automatic
Rolex Sea-Dweller
Rs. 1,033,802
Verified Dealer
65
US
Cvstos CC RGR Very good Rose gold Automatic
Cvstos Eagle's Time AEK (made for AEK Athens), strong limited
Rs. 1,035,817
Verified Dealer
 
DE
Panerai Luminor PAM 124 Very good Titanium 44mm Automatic
TOP
Panerai Luminor PAM 124 Watch with Stainless Steel, Titanium...
Rs. 474,646
Free shipping
Verified Dealer
596
US
Hublot Classic Fusion Ultra-Thin 515.NX.1270.LR New Titanium 45mm Manual winding
TOP
Hublot Classic Fusion 45 ultra-thin
Rs. 718,550
Verified Dealer
45
CH
Rolex Submariner (No Date) 6538 Very good Steel 38mm Automatic
TOP
Rolex Submariner 6538 BIG CROWN TROPICAL 1958
Price on request
Verified Dealer
11
CH
Rolex Yacht-Master 40 116655 Very good Rose gold 40mm Automatic
Rolex Yacht-Master LC 100 everrose gold perfect condition
Rs. 1,733,323
Verified Dealer
449
DE
Rolex Submariner Date 16610 Very good Steel 40mm Automatic
Rolex Submariner Date 16610
Rs. 620,034
Free shipping
Verified Dealer
504
UK
Omega Speedmaster 310.20.42.50.01.001 New Steel 42mm Manual winding
Omega Speedmaster Apollo 11 50th Anniversary 310.20.42.50.01
Rs. 941,497
Verified Dealer
261
US
Rolex Datejust 126334 Unworn Steel 41mm Automatic
Rolex Datejust 41mm Fluted Wimbledon Dial Jubilee 126334 Unworn
Rs. 792,234
Free shipping
Verified Dealer
104
US
Breitling Super Avenger II A1337111/BC29/168A New Steel 48mm Automatic
Breitling Super Avenger II
Rs. 324,149
Verified Dealer
7
US
Rolex Datejust II 116300 New Steel 41mm Automatic
Rolex Datejust II Stainless Steel Blue Dial Mens Watch Box/Papers
Rs. 571,119
Free shipping
Verified Dealer
 
US
Ulysse Nardin Marine Chronometer Manufacture 1185-126 Very good Steel 43mm Automatic
TOP
Ulysse Nardin Marine Chronometer 1185-126 Watch with 18k Rose...
Rs. 1,173,109
Free shipping
Verified Dealer
596
US
Breguet Reine de Naples 8967ST/V8/J50 New Steel 43mm Automatic
TOP
Breguet Reine de Naples
Rs. 1,018,512
Verified Dealer
45
CH
Rolex GMT-Master 1675 Very good Steel 40mm Automatic
TOP
Rolex GMT-Master 1675 PCG 1963
Price on request
Verified Dealer
11
CH
Rolex Daytona 116500LN Very good Steel 40mm Automatic
Rolex Daytona perfect condition box and papers
Rs. 1,944,714
Verified Dealer
449
DE
Rolex Daytona 116500LN Very good Steel 40mm Automatic
Rolex Daytona 116500LN
Rs. 1,621,628
Free shipping
Verified Dealer
504
UK
Rolex Datejust 126334 New Steel 41mm Automatic
Rolex Datejust 41mm 126334 Blue Diamond 2020
Rs. 922,203
Verified Dealer
261
US
Omega Speedmaster Professional Moonwatch 311.92.44.51.01.003 Very good Ceramic Automatic
Omega Speedmaster Professional Moonwatch Dark Side of the Moon
Rs. 563,015
Free shipping
Verified Dealer
104
US
Breitling AB0118A21B1X1 New Steel 42mm Automatic
Breitling PREMIER B01 CHRONOGRAPH 42 NORTON AB0118A21B1X1
Rs. 532,530
Verified Dealer
24
US
Vacheron Constantin Overseas 42042/423A Very good Steel 37mm Automatic
Vacheron Constantin 42042/423A Overseas Automatic 37mm SS...
Rs. 613,567
Verified Dealer
494
US
Ulysse Nardin Marine 1183-170-3/92 Very good Titanium 44mm Automatic
TOP
Ulysse Nardin Diver Chronometer 1183-170-3/92 Watch with...
Rs. 405,186
Free shipping
Verified Dealer
596
US
Rolex Datejust 116188 New Yellow gold 36mm Automatic
TOP
Rolex Datejust 36
Rs. 1,516,185
Verified Dealer
45
CH
Rolex Day-Date 36 118135 Very good Rose gold 36mm Automatic
Rolex Day-Date Rose Chocolate
Rs. 1,429,004
Verified Dealer
22
DE
Rolex GMT-Master II 116718 LN Very good Yellow gold 40mm Automatic
Rolex GMT Master II 116718LN box and papers
Rs. 2,240,662
Verified Dealer
449
DE
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic
Rolex GMT-Master II 116710LN
Rs. 810,814
Free shipping
Verified Dealer
504
UK
Rolex Sea-Dweller 126600 New Steel 43mm Automatic
Rolex Sea-Dweller 126600 NEW 2020 FULL STICKERS
Rs. 1,068,841
Verified Dealer
261
US
Rolex Datejust 126334 Unworn Steel 41mm Automatic
Rolex Datejust 41mm Fluted Wimbledon Dial Oyster 126334 Unworn
Rs. 763,679
Free shipping
Verified Dealer
104
US
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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.