Buyer Protection Authenticity Guarantee Why Chrono24? Singapore  | SGD
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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
S$ 68,080
Seller
The Watch Directory
39
UK
Rolex Daytona Gents Vintage Steel
TOP
Rolex Daytona Gents Vintage Steel
S$ 126,176
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
85
UK
Sinn 103 St Sa RB Classic Watch Sondermodell
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
S$ 3,853
Seller
Classic Watch
 
DE
Ulysse Nardin Classico Paul David Nardin
TOP
Ulysse Nardin Classico Paul David Nardin
S$ 9,674
Seller
Sense of Time
6
LV
Omega Seamaster 300M Professional James Bond Serviced  &...
TOP
Omega Seamaster 300M Professional James Bond Serviced &...
S$ 3,207
Free shipping
Seller
WatchPA
7
SI
Omega Speedmaster Chronograph 38 mm Diamonds
TOP
Omega Speedmaster Chronograph 38 mm Diamonds
S$ 6,417
Seller
Fratelli Monterisi Gioielli S.r.L.
 
IT
Rolex Daytona 116523 Stainless Steel & 18K Gold Model...
Rolex Daytona 116523 Stainless Steel & 18K Gold Model...
S$ 16,000
Seller
Private seller
SG
Ball Engineer Hydrocarbon Spacemaster Ball Spacemaster Glow
Ball Engineer Hydrocarbon Spacemaster Ball Spacemaster Glow
S$ 2,200
Seller
Private seller
SG
Casio PRX-8000YT-1
Casio PRX-8000YT-1
S$ 2,000
Seller
Private seller
SG
Omega Constellation Ladies Red Gold and Steel
Omega Constellation Ladies Red Gold and Steel
S$ 9,950
Seller
Private seller
SG
Breitling Transocean Chronograph Unitime
Breitling Transocean Chronograph Unitime
S$ 11,000
Seller
Private seller
SG
Panerai Luminor 1950 PAM 127 "Fiddy" Limited Edition
Panerai Luminor 1950 PAM 127 "Fiddy" Limited Edition
S$ 18,980
Seller
GRluxury Pte Ltd
SG
Rolex Sea-Dweller
Rolex Sea-Dweller
S$ 18,500
Seller
ARIELLE JEWELLERS AND WATCHES TRADING
SG
Louis Moinet Memoris Red Eclipse
Louis Moinet Memoris Red Eclipse
S$ 152,775
BrandBoutique Member
Louis Moinet
TAG Heuer Carrera Heuer-02T
TAG Heuer Carrera Heuer-02T
S$ 19,088
Free shipping
Seller
DUALL PTE LTD
SG
Omega Seamaster Planet Ocean Good Planet
Omega Seamaster Planet Ocean Good Planet
S$ 6,380
Seller
The Time Co.
SG
Panerai Luminor Power Reserve PAM27
Panerai Luminor Power Reserve PAM27
S$ 9,850
Seller
Monster Time Gallery
SG
Rolex Oyster Perpetual Datejust
Rolex Oyster Perpetual Datejust
S$ 3,950
Seller
Asia Timepiece
SG
Chopard Mille Miglia Gran Turismo XL Chronograph
Chopard Mille Miglia Gran Turismo XL Chronograph
S$ 5,600
Seller
Lu-Ann Vintage Collection
SG
Omega Seamaster
Omega Seamaster
S$ 3,842
Seller
Manfredi Jewels
 
US
Omega Ploprof 1200M
Omega Ploprof 1200M
S$ 7,280
Seller
GRluxury Pte Ltd
SG
Rolex Sea-Dweller Deepsea
Rolex Sea-Dweller Deepsea
S$ 18,200
Seller
ARIELLE JEWELLERS AND WATCHES TRADING
SG
Louis Moinet Memoris
Louis Moinet Memoris
S$ 76,235
BrandBoutique Member
Louis Moinet
Panerai For Ferrari | A Limited Edition Stainless Steel...
Auction
Panerai For Ferrari | A Limited Edition Stainless Steel...
S$ 3,514
Estimated price
Seller
Sotheby´s
 
Rolex Daytona
Rolex Daytona
S$ 20,172
Seller
chasovshik.ru
RU
Panerai LUMINOR MARINA 8 DAYS ACCIAIO PAM 590 Q
Panerai LUMINOR MARINA 8 DAYS ACCIAIO PAM 590 Q
S$ 8,097
Seller
NOSTIME
KR
Rolex Vintage Oyster Perpetual Datejust Ref 1601 (Year 1970)
Rolex Vintage Oyster Perpetual Datejust Ref 1601 (Year 1970)
S$ 3,637
Seller
Asia Timepiece
SG
Chopard Tycoon XL Two O Ten Chronograph
Chopard Tycoon XL Two O Ten Chronograph
S$ 4,125
Seller
Lu-Ann Vintage Collection
SG
Hublot 301.AI.460.RX
TOP
Hublot 301.AI.460.RX
S$ 13,879
Seller
Deluxe ( Asia ) Ltd
11
HK
Omega Speedmaster 125 Anniversary Ref ST 378.0801
Omega Speedmaster 125 Anniversary Ref ST 378.0801
S$ 4,980
Seller
GRluxury Pte Ltd
SG
Rolex Datejust
Rolex Datejust
S$ 12,736
Seller
Juwelier Rubin GbR
 
DE
Omega Constellation Diamonds Ladies 27mm Automatic Mop (lnib)
Omega Constellation Diamonds Ladies 27mm Automatic Mop (lnib)
S$ 4,700
Seller
Goldman Luxury
SG
Omega | A Limited Edition pink Gold Tonneau-form Automatic...
Auction
Omega | A Limited Edition pink Gold Tonneau-form Automatic...
S$ 7,906
Estimated price
Seller
Sotheby´s
 
Rolex GMT-Master II
Rolex GMT-Master II
S$ 14,957
Seller
chasovshik.ru
RU
Corum ADMIRAL'S CUP CHRONOGRAPH 50MM LEFT HANDED PVD
Corum ADMIRAL'S CUP CHRONOGRAPH 50MM LEFT HANDED PVD
S$ 5,489
Seller
NOSTIME
KR
Omega Seamaster Professional Chronometer Ref 1681640 Blue
Omega Seamaster Professional Chronometer Ref 1681640 Blue
S$ 3,040
Seller
Asia Timepiece
SG
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...
S$ 3,637
Seller
VIP WATCH & JEWELLERY
18
HK
Bulgari DG42BSCVDCH
TOP
Bulgari DG42BSCVDCH
S$ 7,818
Free shipping
Seller
Deluxe ( Asia ) Ltd
11
HK
TAG Heuer Grand Carrera
TAG Heuer Grand Carrera
S$ 8,336
Seller
Scrooge Counting House Ltd
 
DE
Ulysse Nardin Maxi Marine
Ulysse Nardin Maxi Marine
S$ 5,000
Seller
Sheen Watch @ Jewelry Pte Ltd
SG
Breitling Avenger Skyland Chronograph - A13380 - Box &...
Breitling Avenger Skyland Chronograph - A13380 - Box &...
S$ 3,853
Seller
wagener-gold International e.K.
756
DE
Omega Seamaster Diver 300 M
Omega Seamaster Diver 300 M
S$ 4,095
Seller
Fabel GmbH
154
DE
Rolex Datejust Lady
Rolex Datejust Lady
S$ 18,937
Seller
chasovshik.ru
RU
Omega 18K YG CONSTELLATION  168017
Omega 18K YG CONSTELLATION 168017
S$ 7,685
Seller
NOSTIME
KR
Rolex Yaayhtmaster II 116681 Stahl Rosegold Yacht-Master Chrono
Rolex Yaayhtmaster II 116681 Stahl Rosegold Yacht-Master Chrono
S$ 24,652
Seller
Juwelier Rieger
110
DE
Rolex Day-Date President Bracelet
Rolex Day-Date President Bracelet
S$ 14,833
Free shipping
Seller
Orologeria Duomo Milano
40
IT
Corum 895-931-06-0371-AN92
TOP
Corum 895-931-06-0371-AN92
S$ 9,663
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Explorer Stainless Steel 36mm
Rolex Explorer Stainless Steel 36mm
S$ 6,381
Seller
Diamond Box, Inc. DBA Solitaire Bridal & Estate Jewellers
 
US
Rolex submariner art. Rb639
Rolex submariner art. Rb639
S$ 7,981
Seller
Stroppiana SRL
223
IT
Omega Seamaster Professional  300m Automatic - 41 mm
Omega Seamaster Professional 300m Automatic - 41 mm
S$ 2,886
Seller
wagener-gold International e.K.
756
DE
Rolex Sea-Dweller Triple Six Tritium Mark III Stahl Automatik...
Rolex Sea-Dweller Triple Six Tritium Mark III Stahl Automatik...
S$ 14,509
Free shipping
Seller
Juwelier Ralf Häffner
385
DE
Rolex Datejust 41
Rolex Datejust 41
S$ 13,036
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
S$ 172,471
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
85
UK
Rolex Datejust 16200 Stahl 36 mm Automatik Date Just
Rolex Datejust 16200 Stahl 36 mm Automatik Date Just
S$ 5,627
Seller
Juwelier Rieger
110
DE
Rolex Datejust 36mm Steel / WG Bezel Blue Stick Dial Jubilee...
Rolex Datejust 36mm Steel / WG Bezel Blue Stick Dial Jubilee...
S$ 6,594
Free shipping
Seller
Orologi & Dintorni Vintage S.r.l.s.
31
IT
Montblanc 102345
TOP
Montblanc 102345
S$ 12,122
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Explorer II 40mm Stainless Steel With Black Dial
Rolex Explorer II 40mm Stainless Steel With Black Dial
S$ 6,656
Seller
Diamond Box, Inc. DBA Solitaire Bridal & Estate Jewellers
 
US
Rolex Date art. Rd380
Rolex Date art. Rd380
S$ 3,386
Seller
Stroppiana SRL
223
IT
Omega Seamaster Professional  300m Quarz - 40 mm - Papers
Omega Seamaster Professional 300m Quarz - 40 mm - Papers
S$ 2,402
Seller
wagener-gold International e.K.
756
DE
Rolex Daytona  Stahl " Paul Newman Panda" Einzelstück...
Rolex Daytona Stahl " Paul Newman Panda" Einzelstück...
S$ 38,333
Seller
C & F Handelskontor GmbH
 
DE
Rolex Day-Date
Rolex Day-Date
S$ 38,012
Seller
chasovshik.ru
RU

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.