Buyer Protection Authenticity Guarantee Why Chrono24? UAE  | AED
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Ulysse Nardin Marine Chronometer Manufacture Rose Gold
TOP
Ulysse Nardin Marine Chronometer Manufacture Rose Gold
AED 87,509
Seller
Sense of Time
 
LV
Rolex Yacht-Master 16622 40mm Steel Platinum Pre-Owned 2012
TOP
Rolex Yacht-Master 16622 40mm Steel Platinum Pre-Owned 2012
AED 26,339
Seller
Click2Shop Limited
29
UK
Rolex Datejust 41" Black Dial Bezel
Rolex Datejust 41" Black Dial Bezel
AED 34,062
Seller
Private seller
AE
Breitling Chronomat 44 Raven Black steel
Breitling Chronomat 44 Raven Black steel
AED 18,508
Seller
Private seller
AE
Breitling Chronomat 44 GMT AB042011/BB56-375A
Breitling Chronomat 44 GMT AB042011/BB56-375A
AED 25,176
Seller
Haute Horologe
AE
Omega Vintage Seamaster Chronometer for Meister / 36 mm / 1971
Omega Vintage Seamaster Chronometer for Meister / 36 mm / 1971
AED 6,563
Free shipping
Seller
VintageCaliber GmbH
32
DE
Breitling Chronomatic Limited Edition 250 Pieces H41360
Breitling Chronomatic Limited Edition 250 Pieces H41360
AED 33,318
Seller
Luxury Souq Dubai
AE
Rolex Sea-Dweller red
Rolex Sea-Dweller red
AED 48,871
Seller
Cleopatra Watches & Jewellery
AE
Ulysse Nardin Maxi Marine Diver Blue Ocean  Limited Edition
Ulysse Nardin Maxi Marine Diver Blue Ocean Limited Edition
AED 27,768
Seller
The Golden Line
AE
Rolex Day-Date
Rolex Day-Date
AED 277,678
Free shipping
Seller
Rainbow Tech
AE
Breitling Chronomat GMT 47mm (B04 Movement)
Breitling Chronomat GMT 47mm (B04 Movement)
Price on request
Seller
Minute Repeater Watches Trading
AE
Ulysse Nardin Maxi Marine Diver
Ulysse Nardin Maxi Marine Diver
AED 27,900
Free shipping
Seller
Timepiece360
AE
Rolex Datejust Lady 68158 Full Yellow Gold Diamond
Rolex Datejust Lady 68158 Full Yellow Gold Diamond
Price on request
Seller
GoldenTimeCo
AE
Omega De Ville Chronoscope Watch
Omega De Ville Chronoscope Watch
AED 22,500
Seller
The Store
AE
Omega Vintage Constellation / Pie-Pan Dial / Steel / 1967
Omega Vintage Constellation / Pie-Pan Dial / Steel / 1967
AED 11,376
Free shipping
Seller
VintageCaliber GmbH
32
DE
Ulysse Nardin GMT +/- Perpetual 42mm rose gold
Ulysse Nardin GMT +/- Perpetual 42mm rose gold
AED 71,641
Seller
Luxury Souq Dubai
AE
Rolex EXPLORER II so called "Albino"
Rolex EXPLORER II so called "Albino"
AED 93,635
Seller
Uhren Schöfer GmbH
DE
Ulysse Nardin Marine Chronometer Manufacture Stainless Steel
Ulysse Nardin Marine Chronometer Manufacture Stainless Steel
AED 24,065
Seller
The Golden Line
AE
Rolex Datejust Stainless Steel 69174
Rolex Datejust Stainless Steel 69174
AED 15,379
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
66
UK
Hublot 301.AI.460.RX
TOP
Hublot 301.AI.460.RX
AED 42,229
Seller
Deluxe ( Asia ) Ltd
9
HK
Omega Seamaster
Omega Seamaster
AED 10,995
Seller
Timepiece360
AE
Rolex Vintage Oyster Perpetual Daydate
Rolex Vintage Oyster Perpetual Daydate
Price on request
Seller
GoldenTimeCo
AE
Rolex Datejust
Rolex Datejust
AED 34,562
Seller
Juwelier Rubin GbR
 
DE
IWC Rare Marriage "Portuguese" Cal.74 / MoP / 1921 /...
IWC Rare Marriage "Portuguese" Cal.74 / MoP / 1921 /...
AED 11,814
Free shipping
Seller
VintageCaliber GmbH
32
DE
Breitling Bentley Mark VI
Breitling Bentley Mark VI
AED 30,359
Seller
Luxury Souq Dubai
AE
Rolex GMT-MASTER II  Tritium
Rolex GMT-MASTER II Tritium
AED 58,631
Seller
Uhren Schöfer GmbH
DE
Zenith Pilot Montre d'Aeronef Type 20 Racer 45MM
Zenith Pilot Montre d'Aeronef Type 20 Racer 45MM
AED 19,623
Seller
The Golden Line
AE
Rolex 16610LV 16610 LV "FLAT 4" Submariner 50th...
Rolex 16610LV 16610 LV "FLAT 4" Submariner 50th...
AED 66,272
Seller
European Watch Company
56
US
Bulgari DG42BSCVDCH
TOP
Bulgari DG42BSCVDCH
AED 21,114
Seller
Deluxe ( Asia ) Ltd
9
HK
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...
AED 463,797
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
66
UK
Rolex Sea Dweller Stahl 16600 Automatik
Rolex Sea Dweller Stahl 16600 Automatik
AED 24,459
Seller
Juwelier Rieger
99
DE
Omega Seamaster Professional 300m Automatic - 41 mm
Omega Seamaster Professional 300m Automatic - 41 mm
AED 6,957
Free shipping
Seller
wagener-gold International e.K.
702
DE
Omega Speedmaster '57
Omega Speedmaster '57
AED 14,791
Seller
Goodwatchplace,LLC
 
US
Omega Seamaster Aqua Terra
Omega Seamaster Aqua Terra
Price on request
Seller
Luxury Souq Dubai
AE
Rolex Date zaffiro art. Rd358nl
Rolex Date zaffiro art. Rd358nl
AED 12,251
Seller
Stroppiana SRL
218
IT
Zenith Legends of Cohiba Rose Gold
Zenith Legends of Cohiba Rose Gold
AED 43,318
Seller
The Golden Line
AE
Longines Grande Vitesse
Longines Grande Vitesse
AED 5,907
Seller
Joaillerie Royale
239
BE
Montblanc 102345
TOP
Montblanc 102345
AED 35,100
Seller
Deluxe ( Asia ) Ltd
9
HK
Omega Seamaster 300 Spectre 007 James Bond Limited Edition
Omega Seamaster 300 Spectre 007 James Bond Limited Edition
AED 31,733
Seller
Swiss Horology
 
UK
Rolex Yacht Master 116622 Stahl Platin 40 mm Yacht-Master
Rolex Yacht Master 116622 Stahl Platin 40 mm Yacht-Master
AED 32,772
Seller
Juwelier Rieger
99
DE
Rolex Oyster Datejust Bark Yellow Gold Diamonds 26 mm (Full Set)
Rolex Oyster Datejust Bark Yellow Gold Diamonds 26 mm (Full Set)
AED 37,191
Seller
Kleen Edelmetalen
109
NL
Rolex Sea-Dweller
Rolex Sea-Dweller
AED 24,065
Seller
Juwelier Burger, since 2001
417
NL
Breitling Bentley Flying B Chronograph - Steel on Bracelet w
Breitling Bentley Flying B Chronograph - Steel on Bracelet w
AED 25,546
Seller
Luxury Souq Dubai
AE
Omega - Seamaster Planet Ocean Professional Co-axial -...
Auction
Omega - Seamaster Planet Ocean Professional Co-axial -...
AED 11,376
Estimated price
Seller
Catawiki BV
 
Zenith El Primero Chronomaster 1969 Tour Auto LTD 500
Zenith El Primero Chronomaster 1969 Tour Auto LTD 500
AED 25,546
Seller
The Golden Line
AE
Breitling BENTLEY SPECIAL EDITION
Breitling BENTLEY SPECIAL EDITION
AED 18,333
Seller
Joaillerie Royale
239
BE
Corum 895-931-06-0371-AN92
TOP
Corum 895-931-06-0371-AN92
AED 26,096
Seller
Deluxe ( Asia ) Ltd
9
HK
Rolex Sea-Dweller - Triple Six - Full Set
Rolex Sea-Dweller - Triple Six - Full Set
AED 38,504
Seller
PASSIONE VINTAGE
67
IT
Rolex Explorer II SEL Scat/Gar art. Re782
Rolex Explorer II SEL Scat/Gar art. Re782
AED 19,690
Seller
Stroppiana SRL
218
IT
Rolex Sea-Dweller DeepSea D-Blue ref. 116660
Rolex Sea-Dweller DeepSea D-Blue ref. 116660
AED 46,817
Seller
Eorologi
207
IT
Baume & Mercier Classima XL Chronograph Executives
TOP
Baume & Mercier Classima XL Chronograph Executives
AED 5,644
Seller
Private seller
 
DE
Breitling MARK V COMP 19
Breitling MARK V COMP 19
AED 34,802
Seller
Luxury Souq Dubai
AE
Rolex Oyster Datejust II Jubilee Steel Blue Dial 41 mm (Full Set)
Rolex Oyster Datejust II Jubilee Steel Blue Dial 41 mm (Full Set)
AED 26,690
Seller
Kleen Edelmetalen
109
NL
Rolex DAYTONA LAST MODEL CERAMIC BEZEL WHITE DIAL
Rolex DAYTONA LAST MODEL CERAMIC BEZEL WHITE DIAL
AED 75,258
Seller
SENZATEMPO
40
IT
Omega Seamaster Professional Chronograph 300 m - Automatic -...
Omega Seamaster Professional Chronograph 300 m - Automatic -...
AED 8,270
Seller
wagener-gold International e.K.
702
DE
Rolex S/S Rare Mark I Dial Flat 4 Green Bezel Submariner 16610LV
Rolex S/S Rare Mark I Dial Flat 4 Green Bezel Submariner 16610LV
AED 46,380
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
66
UK
Rolex Daytona -  Full Set
Rolex Daytona - Full Set
AED 60,819
Seller
PASSIONE VINTAGE
67
IT
Rolex submariner art. Rb639
Rolex submariner art. Rb639
AED 21,659
Seller
Stroppiana SRL
218
IT
Mido Commander 2
Mido Commander 2
AED 4,809
Seller
Regees
 
DE
Omega Seamaster 300M Midsize
Omega Seamaster 300M Midsize
AED 7,329
Seller
Juwelier Burger, since 2001
417
NL

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.