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Doxa GRANDE METRE BLUE PLANET LIMITED EDITION 800PCS WORLD
TOP
Doxa GRANDE METRE BLUE PLANET LIMITED EDITION 800PCS WORLD
NZ$ 5,093
Free shipping
Seller
Przedsiębiorstwo Handlowe Usługowe
172
PL
Omega Seamaster Diver 300 M Ref. 2133042001001
Omega Seamaster Diver 300 M Ref. 2133042001001
NZ$ 3,800
Seller
About Time Ltd
NZ
Rado 56-H Chronometre, 1st Version, Very Rare
TOP
Rado 56-H Chronometre, 1st Version, Very Rare
NZ$ 11,548
Seller
Plus Ultra AG
5
CH
Omega De Ville Prestige
Omega De Ville Prestige
NZ$ 3,900
Seller
Jewelwatch Ltd
NZ
Omega Globemaster
Omega Globemaster
NZ$ 6,450
Seller
Private Seller
NZ
Rolex GMT-Master II 116759SARU june 2020 Rolex warranty
TOP
Rolex GMT-Master II 116759SARU june 2020 Rolex warranty
NZ$ 116,125
Seller
MMC RIVIERA
6
MC
Omega Seamaster Aqua Terra 150M Master Co-Axial  | 41MM
TOP
Omega Seamaster Aqua Terra 150M Master Co-Axial | 41MM
NZ$ 6,956
Seller
Juwelier van Willegen
64
NL
Rolex Oyster Perpetual Caramel Dial Yellow Gold - 67488
TOP
Rolex Oyster Perpetual Caramel Dial Yellow Gold - 67488
NZ$ 8,667
Free shipping
Seller
Pawndeluxe
223
NL
Breitling CHRONOMAT 44 GMT AUTOMATIC AB042011
TOP
Breitling CHRONOMAT 44 GMT AUTOMATIC AB042011
NZ$ 9,643
Free shipping
Seller
RIVIERAWATCH
103
FR
Sinn 103 St Sa RB Classic Watch Sondermodell
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
NZ$ 4,123
Seller
Classic Watch
28
DE
Rolex Day-Date 36 President Yellow Gold
Rolex Day-Date 36 President Yellow Gold
NZ$ 16,409
Seller
Juwelier Burger, since 2001
812
NL
Rolex GMT-Master II 116758SARU
Rolex GMT-Master II 116758SARU
NZ$ 214,463
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
262
UK
Rolex Explorer
Rolex Explorer
NZ$ 8,162
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
348
DE
Breitling Bentley Flying B
Breitling Bentley Flying B
NZ$ 11,613
Seller
Helmut Seidl GmbH
11
DE
Rolex GMT-Master II 116758SARU with 2 years warranty
TOP
Rolex GMT-Master II 116758SARU with 2 years warranty
NZ$ 116,125
Seller
MMC RIVIERA
6
MC
Omega Seamaster Aqua Terra Annual Calendar, UNGETRAGEN, Ref...
Omega Seamaster Aqua Terra Annual Calendar, UNGETRAGEN, Ref...
NZ$ 7,725
Free shipping
Seller
chronopark GmbH
 
DE
IWC Portuguese Chronograph 41mm IW371445 Ex IW371401
IWC Portuguese Chronograph 41mm IW371445 Ex IW371401
NZ$ 9,744
Free shipping
Seller
SORELLE RONCO
982
IT
Omega Deville RG Hour Vision  Co Axial
Omega Deville RG Hour Vision Co Axial
NZ$ 20,476
Seller
VALOBRA Jewelry & Antiques
 
US
Rolex Datejust 126334 Slate Roman
Rolex Datejust 126334 Slate Roman
NZ$ 13,552
Seller
Labelle Jewelry
59
US
Rolex Sea-Dweller
Rolex Sea-Dweller
NZ$ 10,855
Seller
Juwelier Burger, since 2001
812
NL
Rolex GMT-Master Vintage UAE Air Force 1675
Rolex GMT-Master Vintage UAE Air Force 1675
NZ$ 177,165
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
262
UK
Omega Seamaster Co-Axial 600 m
Omega Seamaster Co-Axial 600 m
NZ$ 5,890
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
348
DE
Breitling Chronomat Evolution
Breitling Chronomat Evolution
NZ$ 7,573
Seller
Helmut Seidl GmbH
11
DE
Rolex Datejust 69173
Rolex Datejust 69173
NZ$ 5,369
Seller
Henry´s Auktionshaus AG
DE
Breitling 47mm Chronomat GMT Limited Edition, 2.000 Stück,...
Breitling 47mm Chronomat GMT Limited Edition, 2.000 Stück,...
NZ$ 8,230
Free shipping
Seller
chronopark GmbH
 
DE
Breitling AVENGER HURRICANE 50mm 24 Hours Yellow Textile
Breitling AVENGER HURRICANE 50mm 24 Hours Yellow Textile
NZ$ 10,081
Free shipping
Seller
SORELLE RONCO
982
IT
Rolex Datejust
Rolex Datejust
NZ$ 8,247
Seller
Stephan Hermann GmbH
79
DE
Chopard Mille Miglia Gran Turismo Limited edition
Chopard Mille Miglia Gran Turismo Limited edition
NZ$ 24,305
Seller
VALOBRA Jewelry & Antiques
 
US
Rolex Daytona Steel Black
Rolex Daytona Steel Black
NZ$ 23,393
Seller
Juwelier Burger, since 2001
812
NL
Rolex Submariner Date 16610LV
Rolex Submariner Date 16610LV
NZ$ 36,365
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
262
UK
Breitling Chronomat Evolution
Breitling Chronomat Evolution
NZ$ 4,628
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
348
DE
Breitling Bentley Flying B
Breitling Bentley Flying B
NZ$ 11,613
Seller
Helmut Seidl GmbH
11
DE
Rolex Daytona Ref. 116523
Rolex Daytona Ref. 116523
NZ$ 20,027
Seller
Henry´s Auktionshaus AG
DE
Panerai Radiomir Alarm GMT Herrenuhr, UNGTRAGEN, B&P, Pam 355
Panerai Radiomir Alarm GMT Herrenuhr, UNGTRAGEN, B&P, Pam 355
NZ$ 10,081
Free shipping
Seller
chronopark GmbH
 
DE
Breitling SUPEROCEAN II 44 Total Blue Diver Pro III Chrono...
Breitling SUPEROCEAN II 44 Total Blue Diver Pro III Chrono...
NZ$ 4,157
Free shipping
Seller
SORELLE RONCO
982
IT
F.P.Journe Chronometre Resonance Platinum Silver Dial 40MM...
F.P.Journe Chronometre Resonance Platinum Silver Dial 40MM...
NZ$ 72,033
Seller
European Watch Company
187
US
Rolex Milgauss
Rolex Milgauss
NZ$ 9,761
Seller
Stephan Hermann GmbH
79
DE
Rolex Daytona 116519 White
Rolex Daytona 116519 White
NZ$ 24,403
Seller
Juwelier Burger, since 2001
812
NL
Rolex Big Red Daytona 6263
Rolex Big Red Daytona 6263
NZ$ 149,098
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
262
UK
Breitling Colt Oceane
Breitling Colt Oceane
NZ$ 2,356
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
348
DE
Rolex Deep Sea DLC Black James Cameron Blue Black Dial
Rolex Deep Sea DLC Black James Cameron Blue Black Dial
NZ$ 28,589
Seller
Luxus Ritter
94
DE
Chopard Mille Miglia GTS
Chopard Mille Miglia GTS
NZ$ 5,501
Seller
Kings Hill Jewellery
6
UK
Breitling 45mm Avenger II Seawolf Automatik Chronometer, Ref....
Breitling 45mm Avenger II Seawolf Automatik Chronometer, Ref....
NZ$ 4,695
Free shipping
Seller
chronopark GmbH
 
DE
Breitling SUPER AVENGER II Chrono 48mm Steel Black Chablon Dial
Breitling SUPER AVENGER II Chrono 48mm Steel Black Chablon Dial
NZ$ 6,395
Free shipping
Seller
SORELLE RONCO
982
IT
Rolex Datejust Medium
Rolex Datejust Medium
NZ$ 5,032
Seller
Henry´s Auktionshaus AG
DE
Rolex Datejust
Rolex Datejust
NZ$ 8,751
Seller
Stephan Hermann GmbH
79
DE
Rolex Submariner Date Steel / Gold  Blue SUNBURST DIAL
Rolex Submariner Date Steel / Gold Blue SUNBURST DIAL
NZ$ 18,092
Seller
Juwelier Burger, since 2001
812
NL
Rolex Unworn Daytona 116500LN
Rolex Unworn Daytona 116500LN
NZ$ 34,034
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
262
UK
Rolex Submariner
Rolex Submariner
NZ$ 34,501
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
348
DE
Rolex Cellini
Rolex Cellini
NZ$ 35,648
Seller
Luxchrono Sp. z o.o.
 
PL
Panerai Radiomir Black Seal Stahl Steel B+P TOP
Panerai Radiomir Black Seal Stahl Steel B+P TOP
NZ$ 5,956
Seller
Luxus Ritter
94
DE
Panerai 47mm Radiomir 1940 3 Days, UNGETRAGEN, B&P, Referenz...
Panerai 47mm Radiomir 1940 3 Days, UNGETRAGEN, B&P, Referenz...
NZ$ 8,398
Free shipping
Seller
chronopark GmbH
 
DE
Breitling PROFESSIONAL EXOSPACE B55 Titanium Black Dial
Breitling PROFESSIONAL EXOSPACE B55 Titanium Black Dial
NZ$ 9,643
Free shipping
Seller
SORELLE RONCO
982
IT
Rolex 16600 Sea Dweller SS FULL SET (30071)
Rolex 16600 Sea Dweller SS FULL SET (30071)
NZ$ 13,994
Seller
European Watch Company
187
US
Rolex Air King
Rolex Air King
NZ$ 4,712
Seller
Stephan Hermann GmbH
79
DE
Rolex Yachtmaster II Rose Gold/Steel
Rolex Yachtmaster II Rose Gold/Steel
NZ$ 26,591
Seller
Juwelier Burger, since 2001
812
NL
Rolex Submariner Non-Date 14060M
Rolex Submariner Non-Date 14060M
NZ$ 9,791
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
262
UK
Jaeger-LeCoultre Reverso
Jaeger-LeCoultre Reverso
NZ$ 16,661
Free shipping
Seller
A. Grimmeissen Uhren An- und Verkauf
348
DE
Omega Unworn Seamaster Diver Black 300m Co-Axial
Omega Unworn Seamaster Diver Black 300m Co-Axial
NZ$ 4,653
Free shipping
Seller
fitzroviawatches.co.uk
153
UK
Rolex Datejust 41 126334 Slate Roman
Rolex Datejust 41 126334 Slate Roman
NZ$ 13,449
Seller
Labelle Jewelry
59
US
Omega 34mm Seamaster Aqua Terra CoAxial Master Chronometer,...
Omega 34mm Seamaster Aqua Terra CoAxial Master Chronometer,...
NZ$ 5,705
Free shipping
Seller
chronopark GmbH
 
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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