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41,033 listings including promoted listings
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Promoted
Rolex Datejust 41
41mm 126334 Blue Roman Dial Jubilee 2023 New
C$18,948
+ C$69 for shipping
Promoted
Rolex Datejust 41
126334 NEW 2023 SEPTEMBER Wimbledon Slate Roman Jubilee Steel 41 mm
C$21,336
+ C$619 for shipping
Promoted
Rolex Datejust 41
126334 41mm Mother of Pearl Dial Jubilee Bracelet Unworn 2022
C$21,935
+ C$551 for shipping
Promoted
Rolex GMT-Master II
sprite left handed Jubilee
C$27,942
+ C$109 for shipping
Promoted
Rolex GMT-Master II
126710BLRO NEW 2023 AUGUST Pepsi Jubilee Steel 40 mm
C$33,015
+ C$619 for shipping
Promoted
Rolex GMT-Master II
NEW 2023 GMT-Master II "Sprite" Jubilee 126720
C$28,184
+ C$219 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Blue Motif Dial Fluted Bezel - Stainless Steel Jubilee Bracelet
C$22,705
Free shipping
Chopard Grand Prix de Monaco Historique
(GPMH) Race Edition Titanium 168570-3002
C$8,661
Free shipping
Popular
F.P.Journe Souveraine
Chronometre Souverain Havana
C$102,550
+ C$172 for shipping
Promoted
Audemars Piguet Royal Oak Offshore Chronograph
39 mm Blue Dial Amazing Conditions Official AP Serviced Full Set
C$57,602
+ C$436 for shipping
Promoted
Rolex Datejust 41
126334 Jubilee Steel Green Index Dial 41 mm
C$24,087
Free shipping
Promoted
Rolex Datejust 41
In Stock 2022 Datejust 41 Blue Motif Index Dial 126334 Jubilee Bracelet
C$21,054
Free shipping
Promoted
Rolex Submariner Date
41mm NEW/UNWORN
C$19,946
+ C$109 for shipping
Promoted
Rolex Datejust 41
126334 NEW 2023 SEPTEMBER Mint Green Jubilee Steel 41 mm
C$22,003
+ C$619 for shipping
Promoted
Rolex Datejust 41
NEW 2022 Datejust 41 MOP DIAMOND DIAL
C$23,056
+ C$219 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Motif Green Dial Fluted Bezel Stainless Steel Jubilee Bracelet
C$22,705
Free shipping
Popular
Omega Speedmaster
2020 Tokyo - 5 WATCH COLLECTION
C$76,396
+ C$96 for shipping
Promoted
Omega Speedmaster Professional Moonwatch Moonphase
Chrono Blue Box/Papers/Card 304.33.44.52.03.001
C$11,356
Free shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
C$34,396
+ C$136 for shipping
Popular
Breitling Bentley Motors
TOP ZUSTAND - Breitling Bentley Motors - ALL PAPER - top condition
C$6,548
+ C$144 for shipping
Promoted
Rolex Datejust 41
In Stock 2023 Datejust 41 Wimbledon Dial 126334 Jubilee Bracelet
C$20,090
Free shipping
Promoted
Hublot Classic Fusion Aerofusion
Chronograph Black Magic Aerofusion Automatic Leather 45mm
C$15,000
Excl. shipping
Private Seller
Promoted
Rolex Submariner Date
126610LN NEW 2023 SEPTEMBER Black 41 mm
C$20,510
+ C$619 for shipping
Promoted
Rolex Sea-Dweller
NEW 2023 Sea-Dweller 43mm
C$21,680
+ C$219 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Mint Green Stick Dial Fluted Bezel - Stainless Steel Jubilee Bracelet
C$22,017
Free shipping
Popular
TAG Heuer Carrera
Chronograph Limited Edition 600 pieces Brand-New
C$11,700
+ C$96 for shipping
Promoted
Tudor Black Bay Chrono
2022 Black Bay Chrono White Panda Bracelet Box/Papers/Card M79360N
C$5,988
Free shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
C$34,258
+ C$136 for shipping
Promoted
TAG Heuer Carrera Heuer-02T
Calibre Heuer 02T Tourbillon
C$15,830
+ C$123 for shipping
Promoted
Rolex Submariner Date
In Stock 2023 Submariner Date Black Dial 126610LN Oyster Bracelet
C$19,815
Free shipping

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Promoted
Omega Seamaster Diver 300 M
25318000
C$4,250
Excl. shipping
Private Seller
Promoted
Rolex Submariner (No Date)
124060 NEW 2023 SEPTEMBER Black Steel 41 mm
C$18,287
+ C$619 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Datejust 41 BLACK DIAMOND
C$19,959
+ C$219 for shipping
Promoted
Rolex Submariner Date
41mm NEW 2023 Black Dial Black Ceramic Bezel - 126610LN
C$20,641
Free shipping
Promoted
Omega Speedmaster Professional Moonwatch
Hesalite NEW 2023 - Cal 3861 310.30.42.50.01.001
C$7,846
+ C$109 for shipping
Rolex Datejust 41
126334
C$17,757
+ C$109 for shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
C$33,845
+ C$136 for shipping
Promoted
Omega Speedmaster
Moonwatch Meteorite
C$15,830
+ C$123 for shipping
Promoted
Rolex Datejust 41
In Stock 2023 Datejust 41 Blue Roman Dial 126334 Jubilee Bracelet
C$18,851
Free shipping
Promoted
Omega Genève
Chronometer f300Hz
C$1,695
Excl. shipping
Private Seller
Promoted
Rolex Explorer II
226570 NEW 2023 AUGUST Black Oyster Steel 42 mm
C$17,186
+ C$619 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Datejust 41 WHITE ROMAN Jubilee 11634
C$19,133
+ C$219 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Wimbledon Gray Green Roman Dial Fluted Bezel - Jubilee Bracelet
C$20,641
Free shipping
Promoted
Omega Seamaster Diver 300 M
42mm Blue Dial NEW 2023 - 210.30.42.20.03.001
C$6,944
+ C$109 for shipping
Popular
Rolex Datejust 41
126334 Mint Green Fluted 41mm Steel Oyster Wristwatch with Box and Papers
C$18,789
+ C$268 for shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
C$34,275
+ C$136 for shipping
Rolex GMT-Master II
126720VTNR
C$34,344
+ C$109 for shipping
Promoted
Rolex Datejust 41
In Stock 2023 Datejust 41 Slate Grey Index Dial 126334 Oyster Bracelet
C$17,062
Free shipping
Promoted
Rolex Submariner Date
SEL D Serial 16613 Blue Dial Automatic Men's Watch
C$15,823
+ C$109 for shipping
Promoted
Rolex GMT-Master II
126711CHNR NEW 2023 AUGUST Root Beer Oyster 18k Rose Gold Steel 40 mm
C$29,437
+ C$619 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Datejust 41 WHITE ROMAN
C$18,239
+ C$219 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Green Index Stick Dial Fluted Bezel - Stainless Steel Oyster Bracelet
C$20,641
Free shipping
Promoted
Omega Seamaster Planet Ocean
2011 Seamaster Planet Ocean Unworn Boxes Papers 44mm Orange Bezel 2208.50
C$7,823
+ C$246 for shipping
Promoted
Omega Speedmaster
Dark Side Of The Moon 311.63.44.51.99.001 B&P
C$14,947
+ C$233 for shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
C$33,845
+ C$136 for shipping
Montblanc Star
Chronograph Gmt white gold
C$11,012
+ C$109 for shipping
Promoted
Rolex Datejust 41
In Stock 2023 Datejust 41 Black Index Dial 126334 Oyster Bracelet
C$17,062
Free shipping
Promoted
Rolex Submariner Date
16613 Blue Dial Automatic Men's Watch
C$14,446
+ C$109 for shipping
Promoted
Rolex Submariner Date
126610LV NEW 2023 SEPTEMBER Kermit Green Steel 41 mm
C$23,380
+ C$619 for shipping
Promoted
Rolex Datejust 41
NEW 2023 Datejust 41 BLACK DIAMOND DIAL JUBILEE
C$22,023
+ C$219 for shipping
Promoted
Rolex Datejust 41
NEW 2023 White Index Dial Fluted Bezel Stainless Steel Jubilee Bracelet
C$19,264
Free shipping
Promoted
Breitling Bentley Motors
Limited Chronograph 18K Solid Gold Diamonds
C$23,399
Free shipping
Promoted
Omega Speedmaster Professional Moonwatch Moonphase
Blue Side of the Moon 304.93.44.52.03.002
C$14,510
+ C$233 for shipping

Performance of a Similar Model

Rolex Datejust 41
126334 ()
Case material
White gold
Dial
Blue







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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.