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Rolex GMT-Master II 116759SARU june 2020 Rolex warranty
TOP
Rolex GMT-Master II 116759SARU june 2020 Rolex warranty
Rs. 5,029,334
Seller
MMC RIVIERA
6
MC
Franck Muller 18Kt Perpetual Calendar Moon folding closure
TOP
Franck Muller 18Kt Perpetual Calendar Moon folding closure
Rs. 1,134,034
Seller
Ingo Freiherr von Seld
9
DE
Omega Constellation Day-Date Automatic Chronometer Officially...
Omega Constellation Day-Date Automatic Chronometer Officially...
Rs. 180,000
Seller
Private Seller
IN
Rolex LADY PEARLMASTER DATEJUST MASTERPIECE GOLD DIAMANT DIAMOND
TOP
Rolex LADY PEARLMASTER DATEJUST MASTERPIECE GOLD DIAMANT DIAMOND
Rs. 1,459,318
Seller
Timeless Watches GmbH
218
DE
Perrelet Turbine Macau  (Limited Edition)
TOP
Perrelet Turbine Macau (Limited Edition)
Rs. 332,585
Free shipping
Seller
Istock LTD
99
LV
Ulysse Nardin Maxi Marine Diver 200m 45mm NEW
TOP
Ulysse Nardin Maxi Marine Diver 200m 45mm NEW
Rs. 485,899
Seller
Timepiece Bank
380
BE
Omega De Ville Prestige 18K Gold Luxusuhr Goldband Unisex...
TOP
Omega De Ville Prestige 18K Gold Luxusuhr Goldband Unisex...
Rs. 567,747
Seller
Uhrenkapital
322
DE
Bulgari Diagono Scuba SC38G 18K Gold Chronograph - FULL SET
TOP
Bulgari Diagono Scuba SC38G 18K Gold Chronograph - FULL SET
Rs. 446,151
Free shipping
Seller
Pawndeluxe
138
NL
Rolex Day-Date 40 Everose-Gold 228345RBR Choco Diamant
TOP
Rolex Day-Date 40 Everose-Gold 228345RBR Choco Diamant
Rs. 3,209,040
Seller
Uhren2000 GmbH
341
DE
Hublot King Power F1 India,  Ltd Edition, Box & Papers
TOP
Hublot King Power F1 India, Ltd Edition, Box & Papers
Rs. 1,494,225
Seller
Tempvs Ltd
108
UK
Rolex Daydate
Rolex Daydate
Rs. 709,785
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
229
DE
Breitling Navitimer 01 (46mm)
Breitling Navitimer 01 (46mm)
Rs. 511,045
Seller
LUX-Timepieces GmbH
631
DE
Ball GM1020D-LCJ-BK Trainmaster WorldTime Automatic Black Dial...
Ball GM1020D-LCJ-BK Trainmaster WorldTime Automatic Black Dial...
Rs. 85,455
Free shipping
Seller
The Watch Outlet
8
US
Breitling Navitimer Heritage Blue Dial
Breitling Navitimer Heritage Blue Dial
Rs. 284,779
Seller
The Watch Movement
 
US
Omega Constellation
Omega Constellation
Rs. 101,398
Seller
Niklas Heyns
 
DE
Rolex Sea-Dweller
Rolex Sea-Dweller
Rs. 996,977
Seller
Labelle Jewelry
40
US
Omega Seamaster Planet Ocean 600m Co-Axial Ceramic 232.30.38.2...
TOP
Omega Seamaster Planet Ocean 600m Co-Axial Ceramic 232.30.38.2...
Rs. 214,963
Free shipping
Seller
Pawndeluxe
138
NL
Rolex Submariner Ref. 16610
Rolex Submariner Ref. 16610
Rs. 485,899
Seller
Henry´s Auktionshaus AG
DE
Omega Seamaster DIVER 300 Co-Axial 300 M 41 mm  Blue Dial
Omega Seamaster DIVER 300 Co-Axial 300 M 41 mm Blue Dial
Rs. 223,075
Free shipping
Seller
SORELLE RONCO
606
IT
Omega Seamaster Co Axial Chronometer
Omega Seamaster Co Axial Chronometer
Rs. 227,131
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
229
DE
Panerai Luminor Marina Automatic Acciaio
Panerai Luminor Marina Automatic Acciaio
Rs. 425,060
Seller
LUX-Timepieces GmbH
631
DE
Omega Seamaster Aqua Terra Men’s Stainless Steel Automatic...
Omega Seamaster Aqua Terra Men’s Stainless Steel Automatic...
Rs. 159,516
Free shipping
Seller
The Watch Outlet
8
US
Rolex Air King
Rolex Air King
Rs. 266,879
Seller
Pfandhaus SCHUMACHERS GmbH
5
DE
Breitling Transocean Unitime Pilot
Breitling Transocean Unitime Pilot
Rs. 355,992
Seller
The Watch Movement
 
US
Rolex Datejust 126334
Rolex Datejust 126334
Rs. 655,156
Seller
Labelle Jewelry
40
US
Ulysse Nardin Nardin Marine Chronometer Blue Dial - FULL SET /...
TOP
Ulysse Nardin Nardin Marine Chronometer Blue Dial - FULL SET /...
Rs. 304,194
Free shipping
Seller
Pawndeluxe
138
NL
Panerai Ferrari FER00003 Full Set
Panerai Ferrari FER00003 Full Set
Rs. 283,103
Seller
Henry´s Auktionshaus AG
DE
Rolex Yacht-Master Blu Dial Oyster Rolesium 40mm 116622
Rolex Yacht-Master Blu Dial Oyster Rolesium 40mm 116622
Rs. 803,071
Free shipping
Seller
SORELLE RONCO
606
IT
Breitling Herrenarmbanduhr Galactic 44
Breitling Herrenarmbanduhr Galactic 44
Rs. 239,299
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
229
DE
Breitling Navitimer 1 Chronograph 41
Breitling Navitimer 1 Chronograph 41
Rs. 328,529
Seller
LUX-Timepieces GmbH
631
DE
Ball WATCH ENGINEER HYDROCARBON AIRBORNE MEN'S 42MM WATCH...
Ball WATCH ENGINEER HYDROCARBON AIRBORNE MEN'S 42MM WATCH...
Rs. 135,589
Free shipping
Seller
The Watch Outlet
8
US
Ulysse Nardin Marine Chronometer Automatic Mens Watch 1183-126...
Ulysse Nardin Marine Chronometer Automatic Mens Watch 1183-126...
Rs. 455,405
Seller
Watch Obsession
5
US
Breitling Avenger II Seawolf
Breitling Avenger II Seawolf
Rs. 170,839
Seller
The Watch Movement
 
US
Rolex GMT-Master II, Ref. 126711CH, LC100, unworn, Full Set
Rolex GMT-Master II, Ref. 126711CH, LC100, unworn, Full Set
Rs. 1,183,516
Seller
S3 WATCH AG
17
DE
Omega Seamaster Planet Ocean
Omega Seamaster Planet Ocean
Rs. 243,355
Seller
COMPRA-VENTA JAVIER CALVO
ES
Breitling Navitimer World A24322
Breitling Navitimer World A24322
Rs. 364,221
Seller
Henry´s Auktionshaus AG
DE
IWC Portuguese Chronograph 41mm IW371445 Ex IW371401
IWC Portuguese Chronograph 41mm IW371445 Ex IW371401
Rs. 461,563
Free shipping
Seller
SORELLE RONCO
606
IT
Breitling Chronomat 41
Breitling Chronomat 41
Rs. 316,361
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
229
DE
Omega Seamaster Planet Ocean 600 M Co-Axial Master Chronometer
Omega Seamaster Planet Ocean 600 M Co-Axial Master Chronometer
Rs. 351,242
Seller
LUX-Timepieces GmbH
631
DE
Breitling Navitimer 46mm World GMT Blue Dial Brown Leather...
Breitling Navitimer 46mm World GMT Blue Dial Brown Leather...
Rs. 287,129
Free shipping
Seller
The Watch Outlet
8
US
Breitling Men's A1733110/BC30/152S/A20SS.1 Avenger II Seawolf...
Breitling Men's A1733110/BC30/152S/A20SS.1 Avenger II Seawolf...
Rs. 204,418
Seller
HarveyStore DE
13
DE
TAG Heuer Watch Grand Carrera CAV5185.FT6020
TAG Heuer Watch Grand Carrera CAV5185.FT6020
Rs. 330,541
Seller
Watchfinder.co.uk Ltd
UK
Rolex Lady-Datejust, Ref. 79178, Zustand sehr gut (1)
Rolex Lady-Datejust, Ref. 79178, Zustand sehr gut (1)
Rs. 583,241
Seller
S3 WATCH AG
17
DE
Rolex Datejust 41--126334--2018--EU--
Rolex Datejust 41--126334--2018--EU--
Rs. 588,108
Seller
Marchal Watches
 
NL
Breitling Superocean Heritage U2337012/BB81
Breitling Superocean Heritage U2337012/BB81
Rs. 429,116
Seller
Henry´s Auktionshaus AG
DE
Omega Seamaster AQUA TERRA Co-Axial Master Chronometer.Steel
Omega Seamaster AQUA TERRA Co-Axial Master Chronometer.Steel
Rs. 320,417
Free shipping
Seller
SORELLE RONCO
606
IT
Breitling Chronomat 41 Airborne
Breitling Chronomat 41 Airborne
Rs. 312,305
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
229
DE
Rolex Day Date 40
Rolex Day Date 40
Rs. 2,368,654
Seller
LUX-Timepieces GmbH
631
DE
Breitling Chronomat Evolution Rose Gold and Stainless Steel...
Breitling Chronomat Evolution Rose Gold and Stainless Steel...
Rs. 306,214
Free shipping
Seller
The Watch Outlet
8
US
Chopard Men's 168511-3001 Mille Miglia Chronograph Watch
Chopard Men's 168511-3001 Mille Miglia Chronograph Watch
Rs. 259,254
Seller
HarveyStore DE
13
DE
Omega Watch Planet Ocean 232.30.38.20.01.001
Omega Watch Planet Ocean 232.30.38.20.01.001
Rs. 263,527
Seller
Watchfinder.co.uk Ltd
UK
Omega Seamaster America's Cup
Omega Seamaster America's Cup
Rs. 178,460
Seller
COMPRA-VENTA JAVIER CALVO
ES
Rolex Sea Dweller 16600T
Rolex Sea Dweller 16600T
Rs. 498,417
Free shipping
Seller
Simply Watches USA
 
US
Rolex Date 115200
Rolex Date 115200
Rs. 347,997
Seller
Henry´s Auktionshaus AG
DE
TAG Heuer Grand Carrera Cal.36RS Cronograph Automatic CAV5185F...
TAG Heuer Grand Carrera Cal.36RS Cronograph Automatic CAV5185F...
Rs. 598,653
Free shipping
Seller
SORELLE RONCO
606
IT
Omega Seamaster Co Axial Aqua Terra
Omega Seamaster Co Axial Aqua Terra
Rs. 255,523
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
229
DE
Omega Seamaster 300 Master Co-Axial 41 mm
Omega Seamaster 300 Master Co-Axial 41 mm
Rs. 315,550
Seller
LUX-Timepieces GmbH
631
DE
Rolex 116900 AIR-KING 40MM STEEL BLACK DIAL OYSTER PERPETUAL...
Rolex 116900 AIR-KING 40MM STEEL BLACK DIAL OYSTER PERPETUAL...
Rs. 416,594
Free shipping
Seller
The Watch Outlet
8
US
Zenith Men's 95.9000.9004/78.R582 Defy El Primero 21 - 44.00
Zenith Men's 95.9000.9004/78.R582 Defy El Primero 21 - 44.00
Rs. 616,093
Seller
HarveyStore DE
13
DE
Omega Watch Seamaster 300m 2254.50.00
Omega Watch Seamaster 300m 2254.50.00
Rs. 212,814
Seller
Watchfinder.co.uk Ltd
UK
Rolex Submariner Date
Rolex Submariner Date
Rs. 633,914
Seller
Vine Jewellers Ltd
 
UK
Omega Constellation Men
Omega Constellation Men
Rs. 283,508
Seller
Pfandhaus SCHUMACHERS GmbH
5
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.

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