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Panerai Special Editions PAM 00127 Very good Steel 47mm Manual winding
TOP
Panerai Special Edition Luminor 1950 "Fiddy" PAM00127
C$ 19,690
Free shipping
Verified Dealer
9
US
Omega Seamaster 300 233.32.41.21.01.002 New Steel 41mm Automatic
TOP
Omega Seamaster 300 Master Co‑Axial 41 mm Automatic Black Dial...
C$ 5,550
Free shipping
Verified Dealer
1717
US
Chopard Mille Miglia 168589-3006 New Steel Automatic
TOP
Chopard Mille Miglia 2018 Race Edition Automatic Black Dial...
C$ 6,376
Free shipping
Verified Dealer
1717
US
Cartier Calibre de Cartier W7100015 Good Steel 42mm Automatic
TOP
Cartier 2014 Men's Cartier Calibre W7100015 Silver Roman 42mm...
C$ 5,715
Verified Dealer
93
US
Rolex Daytona 116509 Good 40mm Automatic
Rolex Daytona Cosmograph 18k White Gold Watch With Black Red...
C$ 35,278
Verified Dealer
27
US
Omega Seamaster Aqua Terra 220.10.41.21.03.001 New Steel 41mm Automatic
TOP
Omega Aqua Terra 8900 Blue Master CoAxial - Omega 5 Year Warranty
C$ 5,824
Free shipping
Verified Dealer
290
US
Breitling 765 Fair Steel 41mm Manual winding
Breitling unpolished 1964 "Raquel Welch" AVI Co-Pilot referenc...
C$ 19,076
Free shipping
Verified Dealer
19
ES
Rolex Datejust 126334 New Gold/Steel 41mm Automatic
TOP
Rolex Datejust 41mm 126334 Stainless Steel Jubilee Blue Roman...
C$ 13,712
Free shipping
Verified Dealer
86
US
Rolex Day-Date 1803 Big Logo Clasp Very good Yellow gold 36mm Automatic
TOP
Rolex Day Date President Automatic 18K Gold Herrenuhr Big Logo
C$ 18,470
Verified Dealer
457
DE
Chopard Mille Miglia 168588-3001 New Steel 39mm Automatic
Chopard Mille Miglia
C$ 4,719
Verified Dealer
258
IT
Rolex Sea-Dweller 126600 New Steel 43mm Automatic
TOP
Rolex Sea-Dweller 50th Year Anniversary 126600
C$ 18,438
Free shipping
Verified Dealer
87
US
Rolex GMT-Master 16700 Good Steel 40mm Automatic
TOP
Rolex GMT-Master 16700 40 MM steel full set serviced
C$ 13,309
Verified Dealer
67
IT
Omega Seamaster Aqua Terra 220.10.41.21.02.001 Unworn Steel 41mm Automatic
TOP
Omega Seamaster Aqua Terra
C$ 5,417
Free shipping
Verified Dealer
182
US
Rolex Datejust 126334 New Steel 41mm Automatic
TOP
Rolex 126334 Datejust 41 Grey Roman Wimbledon Jubilee Stainless
C$ 13,379
Verified Dealer
49
US
Omega Seamaster Aqua Terra 220.12.41.21.01.001 New Steel 41mm Automatic
TOP
Omega Aqua Terra 8900 Black Strap Omega 5 Year Warranty
C$ 5,691
Free shipping
Verified Dealer
290
US
Omega Seamaster Diver 300 M 210.30.42.20.03.001 New Steel 42mm Automatic
TOP
Omega Seamaster Diver 300 M 210.30.42.20.03.001
C$ 5,698
Verified Dealer
77
US
Rolex Datejust 126334 Very good Steel 41mm Automatic
Rolex MINT LNIB 2019 Rolex DateJust 41 White Stainless Steel...
C$ 11,974
Free shipping
Verified Dealer
US
Cartier Santos (submodel) 187902 Good Gold/Steel 29mm Quartz
Cartier Santos De-Cartier Two-Tone Steel 18k Gold Date 29mm...
C$ 3,319
Verified Dealer
93
US
Rolex Day-Date 36 118139 New White gold 36mm Automatic
TOP
Rolex Day-Date White Gold Cherry Dial NEW 118139
C$ 26,544
Verified Dealer
708
NL
Breitling Navitimer 01 (46 MM) RB0127121G1P1 New Rose gold 46mm Automatic
Breitling Navitimer 1 B01 Chronograph 46
C$ 24,430
Verified Dealer
5909
DE
Omega Seamaster Planet Ocean 168.1650 Very good Steel 45mm Automatic
TOP
Omega Seamaster Planet Ocean 600M steel Serviced Box
C$ 4,289
Verified Dealer
67
IT
Omega Seamaster Aqua Terra 220.10.38.20.02.001 New Steel 38mm Automatic
TOP
Omega Seamaster Aqua Terra
C$ 5,125
Free shipping
Verified Dealer
182
US
Rolex Datejust 126334 New Steel 41mm Automatic
TOP
Rolex 126334 Datejust 41 Blue Roman Jubilee Stainless Unworn
C$ 13,246
Verified Dealer
49
US
Rolex Datejust 1601 Very good Yellow gold 36mm Automatic
TOP
Rolex DATEJUST 1601 18K YELLOW GOLD 1969
C$ 7,838
Free shipping
Verified Dealer
68
DE
Omega Speedmaster Racing 329.32.44.51.01.001 Unworn Steel 44mm Automatic
Omega Speedmaster Racing Co-Axial Master Chronometer 44mm...
C$ 8,953
Verified Dealer
363
US
Breitling Navitimer 8 A17314101B1A1 New Steel 41mm Automatic
Breitling Navitimer 8
C$ 4,095
Verified Dealer
258
IT
Girard Perregaux 1966 Good Yellow gold 40mm Automatic
Girard Perregaux 1966 Chronograph 18k Yellow Gold Ref. 49539...
C$ 18,629
Verified Dealer
93
US
Rolex Sea-Dweller 126600 Very good Steel 43mm Automatic Canada, Vancouver
TOP
Rolex Sea-Dweller
C$ 20,250
Private Seller
 
CA
Longines Record L2.320.4.57.6 New Steel 26mm Automatic
Longines Record Automatic 26mm
C$ 2,751
Verified Dealer
5909
DE
Rolex Explorer II 16570 Very good Steel 40mm Automatic
TOP
Rolex Explorer II 16570 serviced full set
C$ 10,056
Verified Dealer
67
IT
Omega Speedmaster Racing 329.33.44.51.01.001 Unworn Steel Automatic
TOP
Omega Speedmaster Racing
C$ 7,441
Free shipping
Verified Dealer
182
US
Breitling 634360 Very good Steel 44mm Automatic
TOP
Breitling Edition Special Limited A25 Exemplaires - G34360
C$ 147,880
Free shipping
Verified Dealer
554
NL
Rolex Datejust 126334 New Steel 41mm Automatic
Rolex Datejust 41 mm Jubile Wimbledon (It´s NEW)
C$ 15,232
Verified Dealer
110
ES
Omega Speedmaster Professional Moonwatch 311.92.44.51.01.005 Very good Ceramic Automatic
Omega Speedmaster Professional Moonwatch
C$ 10,517
Verified Dealer
19
US
Sinn 103 103.0619 New Steel 41mm Automatic
TOP
Sinn 103 St Sa RB Classic Watch Sondermodell
C$ 3,623
Verified Dealer
74
DE
Rolex Datejust 126334 Unworn Gold/Steel 41mm Automatic
Rolex - Datejust 41
C$ 15,707
Verified Dealer
115
SE
13761 Very good Rose gold 50mm Manual winding Canada, Kingston
TOP
Eppner & Company Switzerland Gent's, 14k rose gold, pendant...
C$ 1,800
Private Seller
 
CA
Rolex Lady-Datejust 279174 New Gold/Steel 28mm Automatic
Rolex Lady-Datejust 28
C$ 14,455
Verified Dealer
5909
DE
Rolex Oyster Perpetual Lady Date 6517 Very good Yellow gold 26mm Automatic
TOP
Rolex Oyster Perpetual Lady Date 26 mm gold 18 kt serviced
C$ 3,845
Verified Dealer
67
IT
Omega Seamaster Aqua Terra 220.10.41.21.01.001 Unworn Steel 41mm Automatic
TOP
Omega Seamaster Aqua Terra
C$ 5,390
Free shipping
Verified Dealer
182
US
Rolex Sea-Dweller 126600 Very good Steel 43mm Automatic
Rolex Sea-Dweller
C$ 18,099
Free shipping
Verified Dealer
8
US
Rolex Datejust 126334 New Steel 41mm Automatic
Rolex Datejust 41mm Jubilee 2019 NEW
C$ 13,977
Verified Dealer
224
US
Rolex Sea-Dweller 4000 116600 Fair Steel 40mm Automatic
Rolex Black Ceramic Seadweller PVD 116600 SD4K
C$ 13,312
Verified Dealer
10
US
Zenith 2366962 Fair Silver 54mm Manual winding Canada, Kingston
TOP
Zenith Serial No. 2366962, circa 1840. Fine silver purse...
C$ 1,800
Private Seller
 
CA
Ulysse Nardin Marine Chronometer 41mm 263-66 Very good Steel 41mm Automatic
TOP
Ulysse Nardin Marine Maxi Chronometer STEEL BRACELET 263-66-7M...
C$ 4,067
Free shipping
Verified Dealer
554
NL
Omega Speedmaster Professional Moonwatch Moonphase 304.33.44.52.01.001 New 44mm Automatic
TOP
Omega Speedmaster Moon Watch Co-Ax MoonPhase Chronograph...
C$ 8,920
Verified Dealer
9
US
Omega Seamaster 300 233.22.41.21.01.002 New Gold/Steel 41mm Automatic
Omega Seamaster 300
C$ 8,111
Verified Dealer
5909
DE
Rolex Datejust 69068 Very good Yellow gold 26mm Automatic
TOP
Rolex Datejust 26 mm gold 750 rare ref. 69068 serviced
C$ 12,718
Verified Dealer
67
IT
Rolex Datejust 126334 New Steel 41mm Automatic
TOP
Rolex 2019 Datejust 41 126334 Wimbledon Roman Dial Fluted Oyster
C$ 13,246
Free shipping
Verified Dealer
25
US
Audemars Piguet Royal Oak Offshore Chronograph 26408OR.OO.A010CA.01 Unworn Rose gold 44mm Automatic
TOP
Audemars Piguet Royal Oak Offshore Chronograph
C$ 81,874
Verified Dealer
31
US
Rolex Datejust 126334 New Steel 41mm Automatic
Rolex Datejust 41mm 126334 NEW 2019 Black Jubilee
C$ 13,446
Verified Dealer
224
US
Rolex Yacht-Master 169622 Very good Steel 29mm Automatic
Rolex Lady Yachtmaster 29 Platinum & Steel 169622- COMPLETE -...
C$ 6,655
Verified Dealer
10
US
Omega De Ville Prestige 424.10.33.20.52.001 New Steel 32.7mm Automatic
Omega De Ville Prestige 32.7mm Stainless Steel Silver Dial...
C$ 3,766
Free shipping
Verified Dealer
80
HK
Omega De Ville Prestige 424.53.40.20.02.001 Very good Red gold 36.5mm Automatic
TOP
Omega De Ville Prestige Co-Axial 18K Red Gold - 424.53.40.20.0...
C$ 4,658
Free shipping
Verified Dealer
554
NL
Rolex Day-Date 36 1803 Good 36mm Automatic
Rolex 18k Yellow Gold Rolex Oyster Day Date President Diamond...
C$ 15,703
Verified Dealer
27
US
Breitling Navitimer 1 B01 Chronograph 43 UB0121211F1P2 New Gold/Steel 43mm Automatic
Breitling Navitimer 1 B01 Chronograph 43
C$ 10,536
Verified Dealer
5909
DE
Zenith Captain Chronograph 824238 Good Yellow gold 35mm Automatic
TOP
Zenith Chronometre vintage automatic Captain 18k gold serviced
C$ 4,141
Verified Dealer
67
IT
Breitling Bentley Barnato A25366 Very good Steel 49mm Automatic
TOP
Breitling For Bentley Barnato Racing Chronograph Watch W/box &...
C$ 10,179
Verified Dealer
44
US
Omega Seamaster Aqua Terra 220.12.41.21.03.002 New Steel 41mm Automatic
Omega Aqua Terra 8900 41mm Slate Blue Dial Omega 5 Year Warranty
C$ 5,691
Free shipping
Verified Dealer
290
US
Rolex Datejust 126334 New Gold/Steel 41mm Automatic
Rolex Datejust 41mm 2019 NEW
C$ 13,246
Verified Dealer
224
US
Rolex Yacht-Master 40 116622 Very good Steel 40mm Automatic
Rolex Yachtmaster 116622 Platinum & Steel 40mm MINT, COMPLETE
C$ 12,747
Verified Dealer
10
US
Audemars Piguet Royal Oak Offshore Chronograph 26470ST.OO.A099CR.01 New Steel 42mm Automatic
TOP
Audemars Piguet Royal Oak Offshore Chronograph
C$ 30,620
Verified Dealer
31
US
Rolex Datejust 126334 Unworn Steel 41mm Automatic
Rolex Datejust 41mm Stainless Steel Blue Diamond Dial Watch...
C$ 16,640
Free shipping
Verified Dealer
211
US
Jaeger-LeCoultre Geophysic True Second Q8012520 Very good Rose gold 39.6mm Automatic
TOP
Jaeger-LeCoultre Geophysic True Second
C$ 15,439
Verified Dealer
1420
ES
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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.


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