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Rolex Vintage Turn-O-Graph 6202 mit Box und Papieren aus 1955
TOP
Rolex Vintage Turn-O-Graph 6202 mit Box und Papieren aus 1955
Rs. 2,842,579
Seller
TimeElements
31
DE
Rolex GMT-Master II 116759SARU june 2020 Rolex warranty
TOP
Rolex GMT-Master II 116759SARU june 2020 Rolex warranty
Rs. 5,514,552
Seller
MMC RIVIERA
6
MC
Rolex Day-Date 40 18 kt Weißgold Schwarz DIA 228239
TOP
Rolex Day-Date 40 18 kt Weißgold Schwarz DIA 228239
Rs. 2,786,572
Seller
Uhren2000 GmbH
363
DE
Hermès Clipper XL Automatic - Box & inhouse certificate
TOP
Hermès Clipper XL Automatic - Box & inhouse certificate
Rs. 219,720
Free shipping
Seller
Pawndeluxe
189
NL
Omega Constellation Day-Date Automatic Chronometer Officially...
Omega Constellation Day-Date Automatic Chronometer Officially...
Rs. 180,000
Seller
Private Seller
IN
Omega CONSTELLATION OMEGA CO-AXIAL 38 MM ROSE GOLD
TOP
Omega CONSTELLATION OMEGA CO-AXIAL 38 MM ROSE GOLD
Rs. 932,218
Seller
Plus Watch - Luxury Watches
2989
IT
Gérald Genta Arena Sport Retro SSPL10 Men's Watch - Papers
TOP
Gérald Genta Arena Sport Retro SSPL10 Men's Watch - Papers
Rs. 224,029
Free shipping
Seller
Pawndeluxe
189
NL
Sinn 103 St Sa RB Classic Watch Sondermodell
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
Rs. 211,104
Seller
Classic Watch
22
DE
Rolex GMT-Master II 116758SARU
Rolex GMT-Master II 116758SARU
Rs. 11,267,225
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
Breitling Bentley Supersport
Breitling Bentley Supersport
Rs. 379,125
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
285
DE
IWC Portuguese Chronograph 41mm IW371445 Ex IW371401
IWC Portuguese Chronograph 41mm IW371445 Ex IW371401
Rs. 490,278
Free shipping
Seller
SORELLE RONCO
767
IT
Breitling Galactic 36 Automatic Steel & Rose Gold
Breitling Galactic 36 Automatic Steel & Rose Gold
Rs. 336,290
Seller
King Jewelers
 
US
Bulgari Carbon Gold
Bulgari Carbon Gold
Rs. 172,330
Seller
MEGA WATCHES
9
IT
Rolex Submariner Date
Rolex Submariner Date
Rs. 496,634
Seller
Uhrmageren.com
11
DK
Chopard Mille Miglia Gran Turismo XL - Limited Edition Box &...
TOP
Chopard Mille Miglia Gran Turismo XL - Limited Edition Box &...
Rs. 292,961
Free shipping
Seller
Pawndeluxe
189
NL
Rolex Sea-Dweller 4000, Ref. 116600, Full Set, LC100
Rolex Sea-Dweller 4000, Ref. 116600, Full Set, LC100
Rs. 912,486
Seller
time4watches GmbH
23
DE
Rolex Datejust 41mm Slate Oyster 2018 verklebt
Rolex Datejust 41mm Slate Oyster 2018 verklebt
Rs. 710,860
Seller
LUXUS-PORT
52
DE
Rolex Unworn Daytona 116500LN
Rolex Unworn Daytona 116500LN
Rs. 1,788,060
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
Rolex Daydate
Rolex Daydate
Rs. 1,141,684
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
285
DE
Omega Seamaster AQUA TERRA Co-Axial Master Chronometer.Steel
Omega Seamaster AQUA TERRA Co-Axial Master Chronometer.Steel
Rs. 340,351
Free shipping
Seller
SORELLE RONCO
767
IT
Rolex 16700 16700 GMT Master Red / Blue Pepsi Bezel (29479)
Rolex 16700 16700 GMT Master Red / Blue Pepsi Bezel (29479)
Rs. 814,568
Seller
European Watch Company
169
US
Rolex Datejust 41 Dark Rhodium 18k White Gold/Steel Jubilee...
Rolex Datejust 41 Dark Rhodium 18k White Gold/Steel Jubilee...
Rs. 738,903
Seller
CKLY Trading Limited
17
HK
B.R.M DDF-12-44-SQ-AJ
TOP
B.R.M DDF-12-44-SQ-AJ
Rs. 860,787
Free shipping
Seller
Solexport International
MU
Rolex Oyster Perpetual - Ref: 1002 - 71/72 - Service 08.18
Rolex Oyster Perpetual - Ref: 1002 - 71/72 - Service 08.18
Rs. 241,262
Seller
mostwantedwatches MWW GmbH
 
DE
Rolex Sea-Dweller Deepsea, V-Serie, 116660, MK I, Full Set, LC100
Rolex Sea-Dweller Deepsea, V-Serie, 116660, MK I, Full Set, LC100
Rs. 722,923
Seller
time4watches GmbH
23
DE
Breitling Navitimer World aus 2016 , Full Set, MINT Condition
Breitling Navitimer World aus 2016 , Full Set, MINT Condition
Rs. 344,660
Seller
LUXUS-PORT
52
DE
Rolex Rare Day-Date Omani 1803
Rolex Rare Day-Date Omani 1803
Rs. 3,674,095
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
Rolex Submariner
Rolex Submariner
Rs. 1,538,043
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
285
DE
Breitling Superocean 44 Special Total Blue Ocean Racer II Rubber
Breitling Superocean 44 Special Total Blue Ocean Racer II Rubber
Rs. 233,507
Free shipping
Seller
SORELLE RONCO
767
IT
Omega 233.32.41.21.01.001 Omega Seamaster 300M Limited Edition...
Omega 233.32.41.21.01.001 Omega Seamaster 300M Limited Edition...
Rs. 889,299
Seller
European Watch Company
169
US
Omega Seamaster Planet Ocean 600M Master Chronometer Black...
Omega Seamaster Planet Ocean 600M Master Chronometer Black...
Rs. 309,857
Seller
CKLY Trading Limited
17
HK
B.R.M CT-48-AR
TOP
B.R.M CT-48-AR
Rs. 1,025,362
Free shipping
Seller
Solexport International
MU
Omega Seamaster Diver 300 M Co-Axial 41 mm
Omega Seamaster Diver 300 M Co-Axial 41 mm
Rs. 216,356
Seller
Millennium Watches
 
SE
Rolex GMT Master II, Z-Serie, 16710 BLRO, Rectangular, 3186
Rolex GMT Master II, Z-Serie, 16710 BLRO, Rectangular, 3186
Rs. 1,291,612
Seller
time4watches GmbH
23
DE
Omega Seamaster
Omega Seamaster
Rs. 198,386
Seller
BRAND SHOP LIPS
11
JP
Rolex Submariner Date 16613
Rolex Submariner Date 16613
Rs. 661,337
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
Rolex Yacht Master Damenuhr
Rolex Yacht Master Damenuhr
Rs. 775,484
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
285
DE
Breitling SUPER AVENGER II Chrono 48mm Steel Black Chablon Dial
Breitling SUPER AVENGER II Chrono 48mm Steel Black Chablon Dial
Rs. 327,427
Free shipping
Seller
SORELLE RONCO
767
IT
Rolex 16710 GMT Master II SS Black (29112)
Rolex 16710 GMT Master II SS Black (29112)
Rs. 635,214
Seller
European Watch Company
169
US
Omega Seamaster Aqua Terra 150M Master Chronometer Blue Steel...
Omega Seamaster Aqua Terra 150M Master Chronometer Blue Steel...
Rs. 272,673
Seller
CKLY Trading Limited
17
HK
Rolex Datejust- Ref: 16220 - aus 1998 - Rolex Box&Papiere
Rolex Datejust- Ref: 16220 - aus 1998 - Rolex Box&Papiere
Rs. 387,742
Seller
mostwantedwatches MWW GmbH
 
DE
Omega CO-AXIAL GMT 43.5MM 232.90.44.22.03.001
Omega CO-AXIAL GMT 43.5MM 232.90.44.22.03.001
Rs. 518,334
Free shipping
Seller
Exquisite Timepieces
21
US
Rolex Yacht Master, Referenz 116622, FULL SET, LC100
Rolex Yacht Master, Referenz 116622, FULL SET, LC100
Rs. 688,457
Seller
time4watches GmbH
23
DE
Omega Seamaster Diver 300 M Co-Axial 41 mm
Omega Seamaster Diver 300 M Co-Axial 41 mm
Rs. 216,356
Seller
Millennium Watches
 
SE
Rolex Daytona 16528
Rolex Daytona 16528
Rs. 2,400,409
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
Omega Seamaster Automatic Chrono
Omega Seamaster Automatic Chrono
Rs. 211,104
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
285
DE
Breitling SUPEROCEAN II 44 Total Blue Diver Pro III Chrono...
Breitling SUPEROCEAN II 44 Total Blue Diver Pro III Chrono...
Rs. 212,827
Free shipping
Seller
SORELLE RONCO
767
IT
Rolex 116710BLNR GMT Master II Ceramic Black & Blue "Batman"...
Rolex 116710BLNR GMT Master II Ceramic Black & Blue "Batman"...
Rs. 1,008,869
Seller
European Watch Company
169
US
Omega Seamaster Diver 300m Black Steel 36.25mm - 212.30.36.20....
Omega Seamaster Diver 300m Black Steel 36.25mm - 212.30.36.20....
Rs. 188,771
Seller
CKLY Trading Limited
17
HK
Rolex Submariner Date - Ref: 16610 - aus 1999 - Box&Papers
Rolex Submariner Date - Ref: 16610 - aus 1999 - Box&Papers
Rs. 572,996
Seller
mostwantedwatches MWW GmbH
 
DE
Omega Diver 300M Co-Axial 41mm 212.30.41.20.01.003
Omega Diver 300M Co-Axial 41mm 212.30.41.20.01.003
Rs. 231,666
Free shipping
Seller
Exquisite Timepieces
21
US
Panerai Luminor Submersible 1950 Carbotech, 3 Days PAM 00616
Panerai Luminor Submersible 1950 Carbotech, 3 Days PAM 00616
Rs. 1,334,694
Seller
time4watches GmbH
23
DE
Rolex Sea-dweller 126600 – New Model
Rolex Sea-dweller 126600 – New Model
Rs. 990,896
Seller
Mall of the Watch
865
MC
Rolex Milgauss Rare Vintage 1019
Rolex Milgauss Rare Vintage 1019
Rs. 1,812,554
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
Rolex Daydate Borke
Rolex Daydate Borke
Rs. 969,355
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
285
DE
Breitling AVENGER HURRICANE 50mm 24 Hours Yellow Textile
Breitling AVENGER HURRICANE 50mm 24 Hours Yellow Textile
Rs. 516,128
Free shipping
Seller
SORELLE RONCO
767
IT
Rolex 1680 Submariner RED MK IV Circa 1970 SS (29570)
Rolex 1680 Submariner RED MK IV Circa 1970 SS (29570)
Rs. 2,010,265
Seller
European Watch Company
169
US
Omega Speedmaster Moonwatch Dark Side of the Moon Black...
Omega Speedmaster Moonwatch Dark Side of the Moon Black...
Rs. 542,496
Seller
CKLY Trading Limited
17
HK
Rolex Datejust - 16014 - aus 1985/1986 - Service 08.18
Rolex Datejust - 16014 - aus 1985/1986 - Service 08.18
Rs. 314,502
Seller
mostwantedwatches MWW GmbH
 
DE
B.R.M V8-44-GULF
TOP
B.R.M V8-44-GULF
Rs. 516,128
Free shipping
Seller
Solexport International
MU
Breitling Navitimer Cosmonaute
Breitling Navitimer Cosmonaute
Rs. 387,742
Seller
MEGA WATCHES
9
IT
TAG Heuer Carrera Calibre Heuer Heuer02t Cosc – Car5a8w.ft6071
TAG Heuer Carrera Calibre Heuer Heuer02t Cosc – Car5a8w.ft6071
Rs. 853,032
Seller
Mall of the Watch
865
MC
Rolex Submariner Date Serti Dial 16808
Rolex Submariner Date Serti Dial 16808
Rs. 1,494,132
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
235
UK
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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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