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Chopard L.U.C Tourbillon Heritage 161911-9001 RRP £152,800 Ltd Ed
TOP
Chopard L.U.C Tourbillon Heritage 161911-9001 RRP £152,800 Ltd Ed
Rp. 680,588,352
Seller
The Watch Directory
39
UK
Rolex Daytona Gents Vintage Steel
TOP
Rolex Daytona Gents Vintage Steel
Rp. 1,261,357,312
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
Sinn 103 St Sa RB Classic Watch Sondermodell
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
Rp. 38,522,376
Seller
Classic Watch
 
DE
Ulysse Nardin Classico Paul David Nardin
TOP
Ulysse Nardin Classico Paul David Nardin
Rp. 96,708,896
Seller
Sense of Time
6
LV
Omega Speedmaster Chronograph 38 mm Diamonds
TOP
Omega Speedmaster Chronograph 38 mm Diamonds
Rp. 64,150,232
Seller
Fratelli Monterisi Gioielli S.r.L.
 
IT
Omega Seamaster 300M Professional James Bond Serviced  &...
TOP
Omega Seamaster 300M Professional James Bond Serviced &...
Rp. 32,058,998
Free shipping
Seller
WatchPA
7
SI
Breitling Airwolf
Breitling Airwolf
Rp. 38,412,472
Seller
Private seller
ID
Louis Moinet Memoris Red Eclipse
Louis Moinet Memoris Red Eclipse
Rp. 1,527,260,288
BrandBoutique Member
Louis Moinet
Omega Seamaster Planet Ocean
Omega Seamaster Planet Ocean
Rp. 62,000,000
Free shipping
Seller
DUALL PTE LTD
SG
Omega Seamaster
Omega Seamaster
Rp. 38,412,472
Seller
Manfredi Jewels
 
US
Omega | A Limited Edition pink Gold Tonneau-form Automatic...
Auction
Omega | A Limited Edition pink Gold Tonneau-form Automatic...
Rp. 79,032,064
Estimated price
Seller
Sotheby´s
 
Omega 18K YG CONSTELLATION  168017
Omega 18K YG CONSTELLATION 168017
Rp. 76,824,944
Seller
NOSTIME
KR
Rolex Yacht-Master
Rolex Yacht-Master
Rp. 131,686,192
Seller
chasovshik.ru
RU
Rolex Datejust Stainless Steel 69174
Rolex Datejust Stainless Steel 69174
Rp. 57,169,428
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
Hublot 301.AI.460.RX
TOP
Hublot 301.AI.460.RX
Rp. 138,745,168
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Datejust
Rolex Datejust
Rp. 127,317,264
Seller
Juwelier Rubin GbR
 
DE
Louis Moinet Memoris
Louis Moinet Memoris
Rp. 762,102,848
BrandBoutique Member
Louis Moinet
Omega De Ville Stainless Steel White Automatic 424.10.33.20.05...
TOP
Omega De Ville Stainless Steel White Automatic 424.10.33.20.05...
Rp. 36,354,748
Seller
VIP WATCH & JEWELLERY
18
HK
Rolex Submariner Date Gold/Steel
Rolex Submariner Date Gold/Steel
Rp. 99,529,576
Seller
Juwelier Burger, since 2001
440
NL
Panerai For Ferrari | A Limited Edition Stainless Steel...
Auction
Panerai For Ferrari | A Limited Edition Stainless Steel...
Rp. 35,125,356
Estimated price
Seller
Sotheby´s
 
Corum ADMIRAL'S CUP CHRONOGRAPH 50MM LEFT HANDED PVD
Corum ADMIRAL'S CUP CHRONOGRAPH 50MM LEFT HANDED PVD
Rp. 54,874,964
Seller
NOSTIME
KR
Rolex GMT-Master II
Rolex GMT-Master II
Rp. 149,520,560
Seller
chasovshik.ru
RU
Rolex Vintage UAE Air Force Pepsi Bezel GMT-Master B&P 1675
Rolex Vintage UAE Air Force Pepsi Bezel GMT-Master B&P 1675
Rp. 1,724,157,312
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
Bulgari DG42BSCVDCH
TOP
Bulgari DG42BSCVDCH
Rp. 78,153,920
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Date zaffiro art. Rd358nl
Rolex Date zaffiro art. Rd358nl
Rp. 45,130,816
Seller
Stroppiana SRL
223
IT
Rolex Oyster Datejust Bark Yellow Gold Diamonds 26 mm (Full Set)
Rolex Oyster Datejust Bark Yellow Gold Diamonds 26 mm (Full Set)
Rp. 137,004,272
Seller
Kleen Edelmetalen
113
NL
Rolex Sea-Dweller - Triple Six - Full Set
Rolex Sea-Dweller - Triple Six - Full Set
Rp. 141,839,712
Seller
PASSIONE VINTAGE
70
IT
Rolex Sea-Dweller
Rolex Sea-Dweller
Rp. 88,649,824
Seller
Juwelier Burger, since 2001
440
NL
Baume & Mercier Classima XL Chronograph Executives
TOP
Baume & Mercier Classima XL Chronograph Executives
Rp. 20,792,412
Seller
Private seller
 
DE
Panerai LUMINOR MARINA 8 DAYS ACCIAIO PAM 590 Q
Panerai LUMINOR MARINA 8 DAYS ACCIAIO PAM 590 Q
Rp. 80,940,568
Seller
NOSTIME
KR
Rolex Datejust 41
Rolex Datejust 41
Rp. 105,620,592
Seller
chasovshik.ru
RU
Rolex Daytona White Gold, 2000(K-Series) Full Diamonds 40MM MINT
Rolex Daytona White Gold, 2000(K-Series) Full Diamonds 40MM MINT
Rp. 330,422,048
Free shipping
Seller
M.J.WATCHES
50
BE
Montblanc 102345
TOP
Montblanc 102345
Rp. 121,182,496
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Explorer II SEL Scat/Gar art. Re782
Rolex Explorer II SEL Scat/Gar art. Re782
Rp. 72,531,672
Seller
Stroppiana SRL
223
IT
Rolex Oyster Datejust Turnograph White Gold Bezel Blue Dial 36 mm
Rolex Oyster Datejust Turnograph White Gold Bezel Blue Dial 36 mm
Rp. 78,978,928
Seller
Kleen Edelmetalen
113
NL
Rolex Daytona -  Full Set
Rolex Daytona - Full Set
Rp. 224,042,272
Seller
PASSIONE VINTAGE
70
IT
Omega Seamaster Professional Chronograph 300 m - Automatic -...
Omega Seamaster Professional Chronograph 300 m - Automatic -...
Rp. 30,463,302
Seller
wagener-gold International e.K.
754
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
Rp. 198,731,824
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
Vacheron Constantin AUTOMATIC 18K YG WATCH 4870 / 1019...
Vacheron Constantin AUTOMATIC 18K YG WATCH 4870 / 1019...
Rp. 101,518,680
Seller
NOSTIME
KR
Rolex Yacht-Master
Rolex Yacht-Master
Rp. 153,636,176
Seller
chasovshik.ru
RU
Rolex Seadweller 126600 43MM Ceramic New Model Not in Stores Rare
Rolex Seadweller 126600 43MM Ceramic New Model Not in Stores Rare
Rp. 233,150,016
Seller
The Watch Collector NY
 
US
Corum 895-931-06-0371-AN92
TOP
Corum 895-931-06-0371-AN92
Rp. 96,594,736
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex submariner art. Rb639
Rolex submariner art. Rb639
Rp. 79,784,840
Seller
Stroppiana SRL
223
IT
Rolex 116520 Dayt. Stahl Neu B & P mit orig. 116506 Platin...
Rolex 116520 Dayt. Stahl Neu B & P mit orig. 116506 Platin...
Rp. 402,147,840
Seller
C & F Handelskontor GmbH
 
DE
Omega Seamaster Diver 300 M
Omega Seamaster Diver 300 M
Rp. 40,456,556
Free shipping
Seller
Prestige Luxusuhren GmbH
2464
DE
Rolex Oyster Perpetual Submariner 16610 Black PVD
Rolex Oyster Perpetual Submariner 16610 Black PVD
Rp. 116,595,576
Seller
Phigora
74
US
Breitling Colt Chronometer Automatic - A17380
Breitling Colt Chronometer Automatic - A17380
Rp. 25,627,856
Seller
wagener-gold International e.K.
754
DE
Omega Aqua Terra 150M Co-Axial Master Chronometer 41mm G
Omega Aqua Terra 150M Co-Axial Master Chronometer 41mm G
Rp. 62,522,304
Seller
Plus Watch - Luxury Watches
2188
IT
Rolex Datejust
Rolex Datejust
Rp. 119,339,328
Seller
chasovshik.ru
RU
Rolex 116710LN   GMT Master II Black Index Dial
Rolex 116710LN GMT Master II Black Index Dial
Rp. 115,913,688
Seller
K&S Watch & Jewellery
13
HK
Rolex ROLEX DAYTONA  16518 ZENITH ‘LUCKY EIGHT’
Rolex ROLEX DAYTONA 16518 ZENITH ‘LUCKY EIGHT’
Rp. 219,206,832
Seller
SENZATEMPO
40
IT
Rolex Explorer I scat/gar art. Re345
Rolex Explorer I scat/gar art. Re345
Rp. 61,248,968
Seller
Stroppiana SRL
223
IT
Speake-Marin SERPENT CALENDAR 42 MM
Speake-Marin SERPENT CALENDAR 42 MM
Rp. 128,945,192
Free shipping
Seller
RIVIERAWATCH
55
FR
Vacheron Constantin Overseas Automatic Chronometer
TOP
Vacheron Constantin Overseas Automatic Chronometer
Rp. 76,679,632
Seller
Private seller
 
UK
Rolex Oyster Perpetual Day-Date 18K YG 18038
Rolex Oyster Perpetual Day-Date 18K YG 18038
Rp. 164,611,168
Seller
Phigora
74
US
Rolex Yacht-Master II Ref. 116688 neues 2017er Modell aus...
Rolex Yacht-Master II Ref. 116688 neues 2017er Modell aus...
Rp. 520,616,224
Seller
Uhren2000 GmbH
221
DE
Rolex Daytona Cosmograph 6263  "BIG RED "aus Sammlung
Rolex Daytona Cosmograph 6263 "BIG RED "aus Sammlung
Rp. 1,120,211,456
Seller
C & F Handelskontor GmbH
 
DE
Rolex Datejust
Rolex Datejust
Rp. 122,083,072
Seller
chasovshik.ru
RU
Breitling Navitimer
Breitling Navitimer
Rp. 53,173,776
Seller
Uhrencenter Berlin
219
DE
Rolex Datejust II 126334
Rolex Datejust II 126334
Rp. 132,974,736
Seller
Mall of the Watch
407
MC
Rolex Seadweller SCAT/GAR art. Rb1172
Rolex Seadweller SCAT/GAR art. Rb1172
Rp. 94,291,176
Seller
Stroppiana SRL
223
IT

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.