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Rolex Daytona Diamond & Ruby Set 116589SALV
TOP
Rolex Daytona Diamond & Ruby Set 116589SALV
Rs. 7,968,014
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
144
UK
Cartier Ballon Bleu 18K White Gold Automatic Chronograph
TOP
Cartier Ballon Bleu 18K White Gold Automatic Chronograph
Rs. 1,342,217
Free shipping
Seller
Loucri Jewelers
55
US
Rolex Submariner Tropical 1680
TOP
Rolex Submariner Tropical 1680
Rs. 2,781,732
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
144
UK
Breitling Limited Edition Frecce Tricolori Chronomat 44 - 70...
TOP
Breitling Limited Edition Frecce Tricolori Chronomat 44 - 70...
Rs. 285,007
Free shipping
Seller
Pawndeluxe
57
NL
Rolex Sea-Dweller Red 126600 LC-EU 2018
TOP
Rolex Sea-Dweller Red 126600 LC-EU 2018
Rs. 991,330
Free shipping
Seller
Tradeluxe Uhrenhandels GmbH
41
AT
Breitling Chronomat 44mm B01 Manufaktur Stahl-/Roségold MOP...
TOP
Breitling Chronomat 44mm B01 Manufaktur Stahl-/Roségold MOP...
Rs. 611,238
Seller
Uhrenkapital
270
DE
Rolex Day-Date Borke Ref. 18078 Bj.1983 LC100 +Papiere+Brillia...
Rolex Day-Date Borke Ref. 18078 Bj.1983 LC100 +Papiere+Brillia...
Rs. 908,719
Seller
Uhren - Borgardts
 
DE
Longines Hydro Conquest
Longines Hydro Conquest
Rs. 66,089
Seller
SIMARI GIOIELLI
6
IT
Rolex Daytona
Rolex Daytona
Rs. 1,144,160
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
Rolex Men's Rolex Submariner Date Stainless Steel 40mm Black...
Rolex Men's Rolex Submariner Date Stainless Steel 40mm Black...
Rs. 402,282
Seller
Collectors Coins & Jewelry
 
US
Omega Seamaster Planet Ocean Chronograph NEU 12/2017 mit Box/Pap.
Omega Seamaster Planet Ocean Chronograph NEU 12/2017 mit Box/Pap.
Rs. 408,924
Seller
Matthias Wohne Uhrmachermeister
5
DE
Louis Chevrolet Swiss Watches Chrono-Tour Sport
Louis Chevrolet Swiss Watches Chrono-Tour Sport
Rs. 137,892
Free shipping
Seller
Louis Chevrolet Watch Company SA
 
CH
Montblanc Timewalker
Montblanc Timewalker
Rs. 387,858
Seller
Handelshaus Rheinländer
 
DE
Breitling Superocean Héritage II 46 Keramiklünette
Breitling Superocean Héritage II 46 Keramiklünette
Rs. 238,745
Seller
Hans-Peter Niesen KG
18
DE
Breitling Avenger II Seawolf Yellow Black M17331E2/I530 LIMITED
Breitling Avenger II Seawolf Yellow Black M17331E2/I530 LIMITED
Rs. 201,275
Seller
Alux Watches
 
US
Rolex GMT 2  Ref.16710 Bj.2007  (Z) Ungetragen LC100  NUR...
Rolex GMT 2 Ref.16710 Bj.2007 (Z) Ungetragen LC100 NUR...
Rs. 1,652,217
Seller
Uhren - Borgardts
 
DE
Hublot Big Bang Carbon Bezel Baguette 24000€ HT
TOP
Hublot Big Bang Carbon Bezel Baguette 24000€ HT
Rs. 2,379,192
Seller
RIVIERAWATCH
72
FR
Rolex Submariner Sea-Dweller  NEU
Rolex Submariner Sea-Dweller NEU
Rs. 702,192
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
Panerai 2011  PAM 111 Luminor Marina Manual Wind Black Rubber...
Panerai 2011 PAM 111 Luminor Marina Manual Wind Black Rubber...
Rs. 288,121
Seller
Collectors Coins & Jewelry
 
US
TAG Heuer Grand Carrera
TAG Heuer Grand Carrera
Rs. 341,265
Seller
SIMARI GIOIELLI
6
IT
Louis Chevrolet Swiss Watches LC-01 Classic
Louis Chevrolet Swiss Watches LC-01 Classic
Rs. 68,877
Free shipping
Seller
Louis Chevrolet Watch Company SA
 
CH
Omega De Ville Co-Axial Chronometer
Omega De Ville Co-Axial Chronometer
Rs. 231,310
Seller
van der Weerd Janssen
 
NL
Panerai Luminor 44 Marina Base Logo Acciaio  NEU
Panerai Luminor 44 Marina Base Logo Acciaio NEU
Rs. 321,356
Seller
Hans-Peter Niesen KG
18
DE
Omega Grey Side of the Moon Speedmaster UNWORN
Omega Grey Side of the Moon Speedmaster UNWORN
Rs. 636,310
Seller
LBA Exquisite Time Pieces
5
US
Rolex GMT 16700 Bj.1993 (N) LC100 Tritium Blatt
Rolex GMT 16700 Bj.1993 (N) LC100 Tritium Blatt
Rs. 660,804
Seller
Uhren - Borgardts
 
DE
Breitling Superocean II Chronograph
Breitling Superocean II Chronograph
Rs. 322,182
Seller
Juwelier Vogl GmbH
 
DE
Rolex Datejust II
Rolex Datejust II
Rs. 479,143
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
Omega Men's Omega Seamaster Professional 300M 2541.80 Blue...
Omega Men's Omega Seamaster Professional 300M 2541.80 Blue...
Rs. 133,826
Seller
Collectors Coins & Jewelry
 
US
TAG Heuer Grand Carrera CAV518.BFC6237
TAG Heuer Grand Carrera CAV518.BFC6237
Rs. 473,938
Seller
JOYERÍA TACTOC
 
ES
Louis Chevrolet Swiss Watches LC-01 Elegance
Louis Chevrolet Swiss Watches LC-01 Elegance
Rs. 68,877
Free shipping
Seller
Louis Chevrolet Watch Company SA
 
CH
Breitling Navitimer World
Breitling Navitimer World
Rs. 351,096
Seller
Leihhaus Lohmann
11
DE
Omega Constellation Co-Axial 35mm
Omega Constellation Co-Axial 35mm
Rs. 190,005
Seller
Soprana dal 1910 srl
 
IT
Wempe Zeitmeister Chrono Chronometer Ref. WM540001
Wempe Zeitmeister Chrono Chronometer Ref. WM540001
Rs. 127,221
Seller
Hans-Peter Niesen KG
18
DE
Rolex GMT-Master 1675 LC100 Full Set (Papiere+Rechnung+Besch+Box)
Rolex GMT-Master 1675 LC100 Full Set (Papiere+Rechnung+Besch+Box)
Rs. 1,817,439
Seller
Uhren - Borgardts
 
DE
Omega Constellation Co-Axial Chronometer
Omega Constellation Co-Axial Chronometer
Rs. 335,400
Seller
van der Weerd Janssen
 
NL
Rolex Datejust
Rolex Datejust
Rs. 305,660
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
Rolex Vintage Rolex Daytona Cosmograph 6265 Black 37mm 18K...
Rolex Vintage Rolex Daytona Cosmograph 6265 Black 37mm 18K...
Rs. 8,053,232
Seller
Collectors Coins & Jewelry
 
US
Breitling Navitimer World (A24322)
Breitling Navitimer World (A24322)
Rs. 268,390
Seller
The Watch Movement
 
US
Louis Chevrolet Swiss Watches LC-01 Fashion
Louis Chevrolet Swiss Watches LC-01 Fashion
Rs. 68,877
Free shipping
Seller
Louis Chevrolet Watch Company SA
 
CH
Omega Constellation 18195191
Omega Constellation 18195191
Rs. 311,030
Seller
JOYERÍA TACTOC
 
ES
Omega Seamaster Aqua Terra 150M Co-Axial 42 mm
Omega Seamaster Aqua Terra 150M Co-Axial 42 mm
Rs. 801,325
Seller
Soprana dal 1910 srl
 
IT
Graham Chronofigther Oversize Diver
Graham Chronofigther Oversize Diver
Rs. 325,900
Seller
Gomez y Molina Joyeros
 
ES
Breitling Super Avenger Black Limitierte Serie Bj.2009
Breitling Super Avenger Black Limitierte Serie Bj.2009
Rs. 243,702
Seller
Uhren - Borgardts
 
DE
Omega De Ville Hour Vision
Omega De Ville Hour Vision
Rs. 991,330
Seller
Sfera GmbH
 
AT
Rolex GMT Master II
Rolex GMT Master II
Rs. 809,586
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
IWC MINT IWC Portuguese Chronograph Stainless Blue 41mm 3714...
IWC MINT IWC Portuguese Chronograph Stainless Blue 41mm 3714...
Rs. 328,457
Seller
Collectors Coins & Jewelry
 
US
Breitling Navitimer Limited Edition
Breitling Navitimer Limited Edition
Rs. 536,913
Free shipping
Seller
Joyce's Fine Jewelry
 
US
Louis Chevrolet Swiss Watches Chrono-Tour Classic
Louis Chevrolet Swiss Watches Chrono-Tour Classic
Rs. 137,892
Free shipping
Seller
Louis Chevrolet Watch Company SA
 
CH
Rolex Sea-Dweller
Rolex Sea-Dweller
Rs. 532,772
Seller
A. W. Porter & Son Ltd
 
UK
Omega Speedmaster Professional Moon To Mars
Omega Speedmaster Professional Moon To Mars
Rs. 358,325
Seller
Wrights The Jewellers
 
UK
Montblanc Timewalker
Montblanc Timewalker
Rs. 222,636
Seller
Handelshaus Rheinländer
 
DE
Rolex DateJust Stahl 36mm Referenz 1603 Baujahr ca.1974
Rolex DateJust Stahl 36mm Referenz 1603 Baujahr ca.1974
Rs. 227,180
Seller
Uhren - Borgardts
 
DE
Breitling Superocean 42
Breitling Superocean 42
Rs. 165,222
Seller
Sfera GmbH
 
AT
Breitling Superocean  42
Breitling Superocean 42
Rs. 181,744
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
Breitling MINT Breitling Navitimer World GMT Stainless Black...
Breitling MINT Breitling Navitimer World GMT Stainless Black...
Rs. 268,054
Seller
Collectors Coins & Jewelry
 
US
Tissot Ballade Powermatic 80 COSC
Tissot Ballade Powermatic 80 COSC
Rs. 73,524
Seller
ANZOVINO GIOIELLIERI SRL
 
IT
Louis Chevrolet Swiss Watches Chrono-Tour Fashion
Louis Chevrolet Swiss Watches Chrono-Tour Fashion
Rs. 137,892
Free shipping
Seller
Louis Chevrolet Watch Company SA
 
CH
TAG Heuer Grand Carrera WAV511B.FC6230
TAG Heuer Grand Carrera WAV511B.FC6230
Rs. 241,637
Seller
JOYERÍA TACTOC
 
ES
Omega Seamaster Co-Axial Chronometer
Omega Seamaster Co-Axial Chronometer
Rs. 381,662
Seller
van der Weerd Janssen
 
NL
Breitling Chronomat 44
Breitling Chronomat 44
Rs. 302,014
Free shipping
Seller
Joyce's Fine Jewelry
 
US
Rolex Explorer 2  LC100  Ref.216570
Rolex Explorer 2 LC100 Ref.216570
Rs. 470,882
Seller
Uhren - Borgardts
 
DE
Raymond Weil PARSIFAL CHRONO AUTOMATICO ACERO Y ORO
Raymond Weil PARSIFAL CHRONO AUTOMATICO ACERO Y ORO
Rs. 190,005
Seller
JOYERIA TOMAS
11
ES
Rolex Submariner
Rolex Submariner
Rs. 826,108
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
124
DE
Omega RARE 1962 Omega Constellation Tiffany Pie Pan 14K Yellow...
Omega RARE 1962 Omega Constellation Tiffany Pie Pan 14K Yellow...
Rs. 335,168
Seller
Collectors Coins & Jewelry
 
US
Omega De Ville Hour Vision
Omega De Ville Hour Vision
Rs. 446,099
Seller
Sfera GmbH
 
AT
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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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