Buyer Protection Authenticity Guarantee Why Chrono24? Australia  | AUD
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Rolex Daytona Gents Vintage Steel
TOP
Rolex Daytona Gents Vintage Steel
AU$ 123,142
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
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
AU$ 66,443
Seller
The Watch Directory
39
UK
Sinn 103 St Sa RB Classic Watch Sondermodell
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
AU$ 3,761
Seller
Classic Watch
 
DE
Ulysse Nardin Classico Paul David Nardin
TOP
Ulysse Nardin Classico Paul David Nardin
AU$ 9,441
Seller
Sense of Time
6
LV
Omega Speedmaster Chronograph 38 mm Diamonds
TOP
Omega Speedmaster Chronograph 38 mm Diamonds
AU$ 6,263
Seller
Fratelli Monterisi Gioielli S.r.L.
 
IT
Omega Seamaster 300M Professional James Bond Serviced  &...
TOP
Omega Seamaster 300M Professional James Bond Serviced &...
AU$ 3,130
Free shipping
Seller
WatchPA
7
SI
Longines Master Collection Chronograph Moonphase Calendar
Longines Master Collection Chronograph Moonphase Calendar
AU$ 2,499
Seller
Private seller
AU
Omega De Ville Hour Vision (Blue - Orbis)
Omega De Ville Hour Vision (Blue - Orbis)
AU$ 7,500
Seller
Private seller
AU
Ball Watch for BMW GMT
Ball Watch for BMW GMT
AU$ 3,500
Seller
Private seller
AU
Omega Seamaster Planet Ocean
Omega Seamaster Planet Ocean
AU$ 4,488
Seller
Private seller
AU
Omega Constellation
TOP
Omega Constellation
AU$ 2,500
Seller
Private seller
AU
TAG Heuer Carrera Calibre 6 Heritage COSC
TOP
TAG Heuer Carrera Calibre 6 Heritage COSC
AU$ 2,800
Seller
Private seller
AU
Louis Moinet Memoris Red Eclipse
Louis Moinet Memoris Red Eclipse
AU$ 149,101
BrandBoutique Member
Louis Moinet
Omega Iconic US Army Ref; 2179 / CK 2179 30t2 Original Full Size
Omega Iconic US Army Ref; 2179 / CK 2179 30t2 Original Full Size
AU$ 2,225
Seller
Hobart Town Antique Jewellery
AU
Omega Seamaster Aqua Terra
TOP
Omega Seamaster Aqua Terra
AU$ 12,723
Seller
Private seller
AU
Omega Seamaster Planet Ocean 600m Co-Axial Orange Bezel
Omega Seamaster Planet Ocean 600m Co-Axial Orange Bezel
AU$ 4,674
Free shipping
Seller
The Watch Culture
AU
Breitling SuperOcean II  Abyss Yellow
Breitling SuperOcean II Abyss Yellow
AU$ 3,400
Seller
Topwatch Pty Ltd
AU
Omega Planet Ocean Titanium Chronograph 45.5mm
Omega Planet Ocean Titanium Chronograph 45.5mm
AU$ 8,250
Free shipping
Seller
Watch Trader Pty Ltd
AU
Omega Seamaster
Omega Seamaster
AU$ 3,750
Seller
Manfredi Jewels
 
US
Omega Seamaster Black Dial Automatic Steel 212.30.41.20.01.003
Omega Seamaster Black Dial Automatic Steel 212.30.41.20.01.003
AU$ 4,495
Seller
Zaeger Pty Ltd
AU
Omega | A Limited Edition pink Gold Tonneau-form Automatic...
Auction
Omega | A Limited Edition pink Gold Tonneau-form Automatic...
AU$ 7,716
Estimated price
Seller
Sotheby´s
 
Louis Moinet Memoris
Louis Moinet Memoris
AU$ 74,401
BrandBoutique Member
Louis Moinet
Omega 18K YG CONSTELLATION  168017
Omega 18K YG CONSTELLATION 168017
AU$ 7,500
Seller
NOSTIME
KR
Rolex Yacht-Master
Rolex Yacht-Master
AU$ 12,856
Seller
chasovshik.ru
RU
Omega Seamaster Diver Chrono 300m Blue Waved Dial 2598.80
Omega Seamaster Diver Chrono 300m Blue Waved Dial 2598.80
AU$ 3,469
Seller
The Watch Culture
AU
Rolex Datejust Stainless Steel 69174
Rolex Datejust Stainless Steel 69174
AU$ 5,581
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
Hublot 301.AI.460.RX
TOP
Hublot 301.AI.460.RX
AU$ 13,545
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Datejust
Rolex Datejust
AU$ 12,430
Seller
Juwelier Rubin GbR
 
DE
Breitling Super Avenger II Black Dial A1337111/BC29SS
Breitling Super Avenger II Black Dial A1337111/BC29SS
AU$ 6,795
Seller
Zaeger Pty Ltd
AU
Panerai For Ferrari | A Limited Edition Stainless Steel...
Auction
Panerai For Ferrari | A Limited Edition Stainless Steel...
AU$ 3,429
Estimated price
Seller
Sotheby´s
 
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...
AU$ 3,549
Seller
VIP WATCH & JEWELLERY
18
HK
Corum ADMIRAL'S CUP CHRONOGRAPH 50MM LEFT HANDED PVD
Corum ADMIRAL'S CUP CHRONOGRAPH 50MM LEFT HANDED PVD
AU$ 5,357
Seller
NOSTIME
KR
Rolex Daytona
Rolex Daytona
AU$ 40,178
Seller
chasovshik.ru
RU
Breitling Chronomat Windrider MOP Dial A13352
Breitling Chronomat Windrider MOP Dial A13352
AU$ 3,683
Seller
The Watch Culture
AU
Rolex Submariner Date Gold/Steel
Rolex Submariner Date Gold/Steel
AU$ 9,717
Seller
Juwelier Burger, since 2001
440
NL
Bulgari DG42BSCVDCH
TOP
Bulgari DG42BSCVDCH
AU$ 7,630
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Vintage UAE Air Force Pepsi Bezel GMT-Master B&P 1675
Rolex Vintage UAE Air Force Pepsi Bezel GMT-Master B&P 1675
AU$ 168,323
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK
Breitling Super Avenger II Diamond Set Bezel Lugs A13371
Breitling Super Avenger II Diamond Set Bezel Lugs A13371
AU$ 19,000
Seller
Zaeger Pty Ltd
AU
Rolex Date zaffiro art. Rd358nl
Rolex Date zaffiro art. Rd358nl
AU$ 4,406
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)
AU$ 13,375
Seller
Kleen Edelmetalen
113
NL
Panerai LUMINOR MARINA 8 DAYS ACCIAIO PAM 590 Q
Panerai LUMINOR MARINA 8 DAYS ACCIAIO PAM 590 Q
AU$ 7,902
Seller
NOSTIME
KR
Rolex GMT-Master II
Rolex GMT-Master II
AU$ 14,597
Seller
chasovshik.ru
RU
Omega Speedmaster 125 Anniversary Chronograph
Omega Speedmaster 125 Anniversary Chronograph
AU$ 3,817
Seller
The Watch Culture
AU
Rolex Sea-Dweller
Rolex Sea-Dweller
AU$ 8,655
Seller
Juwelier Burger, since 2001
440
NL
Montblanc 102345
TOP
Montblanc 102345
AU$ 11,831
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Sea-Dweller - Triple Six - Full Set
Rolex Sea-Dweller - Triple Six - Full Set
AU$ 13,847
Seller
PASSIONE VINTAGE
70
IT
Omega Seamaster Aqua Terra Silver Dial 231.10.39.21.02.001
Omega Seamaster Aqua Terra Silver Dial 231.10.39.21.02.001
AU$ 3,995
Seller
Zaeger Pty Ltd
AU
Rolex Explorer II SEL Scat/Gar art. Re782
Rolex Explorer II SEL Scat/Gar art. Re782
AU$ 7,081
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
AU$ 7,710
Seller
Kleen Edelmetalen
113
NL
Vacheron Constantin AUTOMATIC 18K YG WATCH 4870 / 1019...
Vacheron Constantin AUTOMATIC 18K YG WATCH 4870 / 1019...
AU$ 9,911
Seller
NOSTIME
KR
Rolex Sky-Dweller
Rolex Sky-Dweller
AU$ 33,481
Seller
chasovshik.ru
RU
TAG Heuer Sport Elegance Chronometer Aut.  WG5113
TAG Heuer Sport Elegance Chronometer Aut. WG5113
AU$ 1,326
Seller
The Watch Culture
AU
Baume & Mercier Classima XL Chronograph Executives
TOP
Baume & Mercier Classima XL Chronograph Executives
AU$ 2,030
Seller
Private seller
 
DE
Corum 895-931-06-0371-AN92
TOP
Corum 895-931-06-0371-AN92
AU$ 9,430
Seller
Deluxe ( Asia ) Ltd
11
HK
Rolex Daytona -  Full Set
Rolex Daytona - Full Set
AU$ 21,872
Seller
PASSIONE VINTAGE
70
IT
Rolex Explorer II White dial Stainless Steel GMT 216570 WSO
Rolex Explorer II White dial Stainless Steel GMT 216570 WSO
AU$ 9,495
Seller
Zaeger Pty Ltd
AU
Rolex Daytona White Gold, 2000(K-Series) Full Diamonds 40MM MINT
Rolex Daytona White Gold, 2000(K-Series) Full Diamonds 40MM MINT
AU$ 32,258
Free shipping
Seller
M.J.WATCHES
50
BE
Rolex submariner art. Rb639
Rolex submariner art. Rb639
AU$ 7,789
Seller
Stroppiana SRL
223
IT
Omega Seamaster Professional Chronograph 300 m - Automatic -...
Omega Seamaster Professional Chronograph 300 m - Automatic -...
AU$ 2,974
Seller
wagener-gold International e.K.
754
DE
Rolex Datejust
Rolex Datejust
AU$ 12,320
Seller
chasovshik.ru
RU
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
AU$ 19,401
Free shipping
Seller
Watches & Jewellery of Bond Street Ltd
84
UK

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.