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Vacheron Constantin Malte Régulateur Dual Time
Vacheron Constantin Malte Régulateur Dual Time
NZ$ 27,686
Seller
Rent a Box Schmuck und Uhren AG
 
CH
Graham Chronofighter 43mm Roségold 2CFAR.B10A.C54B
Graham Chronofighter 43mm Roségold 2CFAR.B10A.C54B
NZ$ 14,241
Seller
KROMINI GOLD IMPEX S.R.L
 
RO
TAG Heuer Grand Carrera
TAG Heuer Grand Carrera
NZ$ 4,069
Seller
Reclaimed Jewels
 
NL
Omega Seamaster Diver 300 M
Omega Seamaster Diver 300 M
NZ$ 3,695
Seller
Jewelwatch Ltd
NZ
Breitling Montbrillant Légende
Breitling Montbrillant Légende
NZ$ 5,208
Seller
Plinio Gioielli S.R.L.
 
IT
Rolex EXPLORER II so called "Albino"
Rolex EXPLORER II so called "Albino"
NZ$ 34,830
Seller
Uhren Schöfer GmbH
DE
Montblanc Meisterstück
Montblanc Meisterstück
NZ$ 1,951
Seller
Private seller
 
HU
Omega Seamaster Planet Ocean - men's wristwatch - 2007
Omega Seamaster Planet Ocean - men's wristwatch - 2007
NZ$ 3,906
Estimated price
Seller
Catawiki BV
 
Hublot 301.AI.460.RX
Hublot 301.AI.460.RX
NZ$ 14,090
Seller
Deluxe ( Asia ) Ltd
 
HK
Rolex Submariner
Rolex Submariner
NZ$ 10,265
Seller
SWISSTIME.DK
 
DK
Rolex Yacht-Master II 44 mm Steel
Rolex Yacht-Master II 44 mm Steel
NZ$ 15,250
Seller
Lombard Perspectiva
RU
Rolex Oyster Perpetual Datejust Stainless Steel Silver Face...
Rolex Oyster Perpetual Datejust Stainless Steel Silver Face...
NZ$ 4,637
Seller
La Jolla Jewelry and Collateral Loan Company
7
US
Omega Seamaster Planet Ocean Chronograph
Omega Seamaster Planet Ocean Chronograph
NZ$ 6,304
Seller
Jewelwatch Ltd
NZ
Rolex Daytona (White dial)
Rolex Daytona (White dial)
NZ$ 20,972
Seller
Private seller
 
UK
Breitling Navitimer Heritage
Breitling Navitimer Heritage
NZ$ 4,671
Seller
Private seller
 
RO
Breitling Chronomat 41 Rosegold/Steel Full Set Unworn
Breitling Chronomat 41 Rosegold/Steel Full Set Unworn
NZ$ 9,684
Seller
Private seller
 
BE
IWC Portuguese Chronograph
IWC Portuguese Chronograph
NZ$ 7,322
Seller
Private seller
 
PT
Zenith El Primero Chronomaster - Men's wristwatch
Zenith El Primero Chronomaster - Men's wristwatch
NZ$ 12,532
Estimated price
Seller
Catawiki BV
 
Rolex GMT-MASTER II  Tritium
Rolex GMT-MASTER II Tritium
NZ$ 21,809
Seller
Uhren Schöfer GmbH
DE
Rolex Sea-Dweller
Rolex Sea-Dweller
NZ$ 25,227
Seller
Private seller
 
SI
Omega Seamaster Planet Ocean Titan
Omega Seamaster Planet Ocean Titan
NZ$ 6,266
Seller
Private seller
 
AT
A. Lange & Söhne Savonette  ALS  1B,  14 Kt,  Top=Wie Neu,...
A. Lange & Söhne Savonette ALS 1B, 14 Kt, Top=Wie Neu,...
NZ$ 7,975
Seller
Private seller
 
DE
Louis Moinet Tempograph
Louis Moinet Tempograph
NZ$ 17,848
Seller
Private seller
 
UK
Rolex Sea-Dweller Deepsea
Rolex Sea-Dweller Deepsea
NZ$ 19,514
Seller
Private seller
 
DE
Ball for BMW Power Reserve
Ball for BMW Power Reserve
NZ$ 2,832
Seller
Private seller
 
DE
Montblanc 1858 Monopusher Chronograph Limited Edition
Montblanc 1858 Monopusher Chronograph Limited Edition
NZ$ 22,043
Seller
Private seller
 
CH
Omega Seamaster Diver 300 M
Omega Seamaster Diver 300 M
NZ$ 4,557
Seller
Private seller
 
DE
Omega - Seamaster Aqua Terra - Men's watch
Omega - Seamaster Aqua Terra - Men's watch
NZ$ 5,045
Estimated price
Seller
Catawiki BV
 
Tudor Black Bay Dark
Tudor Black Bay Dark
NZ$ 5,450
Seller
SWISSTIME.DK
 
DK
Baume & Mercier Classima XL Chronograph Executives
Baume & Mercier Classima XL Chronograph Executives
NZ$ 2,100
Seller
Private seller
 
DE
Rolex Rare S/S O/P UAE Air Force Pepsi Bezel GMT-Master...
Rolex Rare S/S O/P UAE Air Force Pepsi Bezel GMT-Master...
NZ$ 169,559
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
54
UK
Audemars Piguet Royal Oak Rubens Barrichello II Limited...
Audemars Piguet Royal Oak Rubens Barrichello II Limited...
NZ$ 96,827
Seller
Private seller
 
UK
Doxa Anti-Magnetic Chronograph
Doxa Anti-Magnetic Chronograph
NZ$ 228
Seller
Private seller
 
HU
Rolex Datejust 41 NEW Ref. 126334
Rolex Datejust 41 NEW Ref. 126334
NZ$ 12,695
Seller
Steiner Maastricht
46
NL
Omega Seamaster Aqua Terra
Omega Seamaster Aqua Terra
NZ$ 12,125
Seller
Private seller
 
DE
Rolex Daytona
Rolex Daytona
NZ$ 37,434
Seller
Private seller
 
IT
Omega Seamaster Diver - Men's watch - 2000's
Omega Seamaster Diver - Men's watch - 2000's
NZ$ 2,441
Estimated price
Seller
Catawiki BV
 
Rolex Datejust art. Rs184bj
Rolex Datejust art. Rs184bj
NZ$ 4,069
Seller
Stroppiana SRL
200
IT
Rolex Sea-Dweller Red / Ref. 126600 NEW UNWORN / FULL-SET / LC EU
Rolex Sea-Dweller Red / Ref. 126600 NEW UNWORN / FULL-SET / LC EU
NZ$ 19,449
Seller
DIAMANDO
 
DE
Rolex Oyster Perpetual Datejust Copper Salmon Dial Steel Watch
Rolex Oyster Perpetual Datejust Copper Salmon Dial Steel Watch
NZ$ 3,140
Seller
La Jolla Jewelry and Collateral Loan Company
7
US
Rolex Daytona Cosmograph Daytona 40mm Everose Gold
Rolex Daytona Cosmograph Daytona 40mm Everose Gold
NZ$ 30,361
Seller
Lombard Perspectiva
RU
Breitling Chronomat 44 Airborne
Breitling Chronomat 44 Airborne
NZ$ 6,103
Seller
Private seller
 
DE
Junghans Meister Chronoscope
Junghans Meister Chronoscope
NZ$ 2,034
Seller
Private seller
 
FR
Rolex Sea-Dweller Ref. 126600
Rolex Sea-Dweller Ref. 126600
price on request
Seller
Steiner Maastricht
46
NL
Rolex Sea-Dweller Steel Deepsea D-Blue 'James Cameron'...
Rolex Sea-Dweller Steel Deepsea D-Blue 'James Cameron'...
NZ$ 17,822
Seller
M.J.WATCHES
45
BE
Omega Constellation Men's Watch, Steel and Gold, Automatic...
Omega Constellation Men's Watch, Steel and Gold, Automatic...
NZ$ 2,848
Estimated price
Seller
Catawiki BV
 
IWC Ingenieur Chronograph Edition "74th Members Meeting at...
IWC Ingenieur Chronograph Edition "74th Members Meeting at...
NZ$ 25,345
Seller
Private seller
 
UK
Rolex GMT II Ceramica Ref. 116710 02/2011 art. Rg823
Rolex GMT II Ceramica Ref. 116710 02/2011 art. Rg823
NZ$ 10,660
Seller
Stroppiana SRL
200
IT
Rolex Oyster Perpetual Datejust Stainless Steel White Gold Watch
Rolex Oyster Perpetual Datejust Stainless Steel White Gold Watch
NZ$ 4,637
Seller
La Jolla Jewelry and Collateral Loan Company
7
US
Rolex Explorer 6610 steel
Rolex Explorer 6610 steel
NZ$ 21,150
Seller
A Collected Man
5
UK
Rolex Explorer II
Rolex Explorer II
NZ$ 40,689
Seller
2GTime
 
CH
Rolex Oyster Perpetual Datejust 41 126334 NEW MODEL
Rolex Oyster Perpetual Datejust 41 126334 NEW MODEL
NZ$ 11,800
Seller
Filipucci Juweliers
249
NL
Rolex DayDate 18238 Gelbgold 750 automatik 36mm DayDate
Rolex DayDate 18238 Gelbgold 750 automatik 36mm DayDate
NZ$ 16,259
Seller
Juwelier Rieger
87
DE
Montblanc Timewalker Twinfly Greytech Titanium Chrono
Montblanc Timewalker Twinfly Greytech Titanium Chrono
NZ$ 8,318
Seller
Private seller
 
US
Panerai Radiomir PAM 504 3 days GOLD HANDS (Limited edition)...
Panerai Radiomir PAM 504 3 days GOLD HANDS (Limited edition)...
NZ$ 8,952
Estimated price
Seller
Catawiki BV
 
Clerc Hydroscaph  Chronometer H1 -1.B.3
Clerc Hydroscaph Chronometer H1 -1.B.3
NZ$ 8,602
Seller
Private seller
 
DE
Rolex Oyster Perpetual
Rolex Oyster Perpetual
NZ$ 7,509
Seller
Private seller
 
SE
Omega Seamaster 2264.50 Professional 300m Quartz Large Divers...
Omega Seamaster 2264.50 Professional 300m Quartz Large Divers...
NZ$ 3,140
Seller
La Jolla Jewelry and Collateral Loan Company
7
US
Rolex Explorer II scat/gar art. Re352
Rolex Explorer II scat/gar art. Re352
NZ$ 6,836
Seller
Stroppiana SRL
200
IT
Rolex Daytona Cosmograph Stainless Steel 116520
Rolex Daytona Cosmograph Stainless Steel 116520
NZ$ 15,664
Seller
Phigora
59
US

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.