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40,733 listings including promoted listings
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Promoted
Rolex Submariner Date
2023 Submariner Date(New)126610LN full set.
Php945,754
Free shipping
Promoted
Rolex Submariner (No Date)
2023 Submariner No Date(New) 124060 Black. full set
Php829,711
Free shipping
Promoted
Rolex Datejust 41
NEW 2023 Motif Green Dial Fluted Bezel Stainless Steel Jubilee Bracelet
Php957,069
+ Php14,215 for shipping
Promoted
Breitling Chronospace
Ref. A78365 - 48 mm - Very Good Conditions - Full Set
Php212,065
+ Php18,379 for shipping
Popular
Breitling Bentley Motors
TOP ZUSTAND - Breitling Bentley Motors - ALL PAPER - top condition
Php275,992
+ Php6,085 for shipping
Promoted
Patek Philippe Annual Calendar Chronograph
5905P-001
Php4,000,000
Excl. shipping
Private Seller
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
Php1,449,847
+ Php5,744 for shipping
Popular
Omega Seamaster 300
New Unworn Co-Axial Master Chronometer Full Set August 2023
Php353,442
Free shipping
Rolex Sea-Dweller
Red 7/2023 Box&Papers Lc:A
Php921,409
+ Php122,936 for shipping
Promoted
Ulysse Nardin Marine
Chronometer 261-77 Gold 18k/750 Box+Papiere
Php583,948
+ Php5,839 for shipping
Popular
Omega Speedmaster Professional Moonwatch
Co-Axial rosegold
Php2,723,042
+ Php15,367 for shipping
Rolex Daytona
white black arab serviced 02/2022 box papers
Php2,151,326
+ Php12,232 for shipping
Rolex Sea-Dweller
Stickered 2023 New & Unworn
Php971,198
+ Php15,367 for shipping
Popular
Omega Seamaster Planet Ocean Chronograph
600M Chronograph New
Php1,689,762
+ Php9,159 for shipping
Rolex Daytona
yellow gold white arabic dial | leather | Zenith 1995 box + papers
Php1,840,973
+ Php10,757 for shipping
Promoted
Rolex Datejust 41
18k White Gold and Steel Blue Index Dial Jubilee 126334
Php899,337
+ Php5,744 for shipping
Promoted
Zenith Captain
Chronometer Captain Automatic Oversize XL Vintage Retro
Php150,966
+ Php1,859 for shipping
Popular
Rolex Submariner Date
2023 Box&Papers Partially stickers
Php902,968
+ Php122,936 for shipping
Promoted
Movado
VERY RARE 18kt Solid Gold Chronométre 1769 Cal. 150MN Step Case 154388 Breguet
Php128,469
Free shipping
Popular
Audemars Piguet Royal Oak Perpetual Calendar
Limited 120 with AP Service from 2022
Php14,014,756
+ Php15,367 for shipping
Rolex Daytona
06 2021 perfect condition box papers
Php1,290,771
+ Php12,232 for shipping
Popular
Rolex Datejust 41
2023 New Unworn Motiv Green
Php915,877
+ Php15,367 for shipping
Rolex Daytona
Cosmograph Daytona MOP Dial
Php3,005,796
+ Php11,679 for shipping
Rolex Day-Date 36
white gold factory diamonds Oyster - rare
Php1,429,136
+ Php10,757 for shipping
Promoted
Rolex Datejust 41
Stainless Steel & White Gold White Index Dial Jubilee (126334)
Php783,293
+ Php5,744 for shipping
Popular
Omega Seamaster Planet Ocean
FULL SET - Omega Seamaster Planet Ocean Oreo GMT
Php355,901
+ Php6,085 for shipping
Rolex Submariner Date
2021 Box&Papers
Php847,647
+ Php122,936 for shipping
Ulysse Nardin El Toro / Black Toro
Perpetual Black Full Set Like New
Php1,598,174
+ Php9,220 for shipping
Glashütte Original Senator Chronometer Regulator
Rosegold Ref. 5804040504
Php1,255,489
+ Php15,367 for shipping
Rolex Sky-Dweller
LC 100 top condition box papers
Php2,427,933
+ Php12,232 for shipping

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More information

Rolex Submariner Date
2023 New & Unworn
Php909,730
+ Php15,367 for shipping
Rolex GMT-Master II
Rootbeer
Php1,469,091
+ Php9,159 for shipping
Rolex Sky-Dweller
42 yellow gold Oysterflex / rubber champagne 2022 box + papers
Php2,332,719
+ Php10,757 for shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
Php1,426,639
+ Php5,744 for shipping
Popular
Omega Seamaster Planet Ocean
FULL SET NEU/NEW - Omega Seamaster Planet Ocean Gmt
Php331,314
+ Php6,085 for shipping
Popular
Breitling Avenger Seawolf
45 Box&Papers like new
Php214,524
+ Php122,936 for shipping
Popular
Omega Speedmaster Professional Moonwatch
Co-Axial Master Chronometer Canopus Gold Handaufzug Chronograph Armband Canopus Gold 42mm Ref.310.60.42.50.02.001 Bj.2023 Box&P
Php2,458,668
+ Php30,734 for shipping
Chopard L.U.C
Chrono One Flyback 42mm limited Edition of 250 Ref. 168596
Php1,121,795
+ Php15,367 for shipping
Rolex Day-Date 40
Meteorite Dial unworn box papers
Php5,532,079
+ Php12,232 for shipping
Rolex Datejust 41
2023 New Unworn
Php872,849
+ Php15,367 for shipping
Rolex Daytona
Cosmograph Daytona Grey Dial
Php1,346,154
+ Php9,159 for shipping
Rolex Day-Date 40
yellow gold champagne diamond baguette President 2017 box + papers
Php2,455,656
+ Php10,757 for shipping
Promoted
Rolex GMT-Master II
With A Green And Black Bezel "SPRITE" 126720VTNR
Php1,444,741
+ Php5,744 for shipping
Rolex Oyster Perpetual Date
15210 Cal. 3135 1991 34mm Grau inkl. Box
Php294,433
+ Php6,762 for shipping
Popular
Breitling Avenger Seawolf
45 Box&Papers 2013
Php165,350
+ Php122,936 for shipping
Omega Speedmaster Professional Moonwatch
Ref.310.63.42.50.01.001 2022 Full Set Ungetragen
Php1,413,155
+ Php30,734 for shipping
Tudor Black Bay Fifty-Eight
925 Silver Ref. M79010SG-0002 grey taupe
Php273,534
+ Php15,367 for shipping
Rolex Datejust 41
11/2021 perfect condition box papers
Php891,228
+ Php12,232 for shipping
Rolex Datejust 41
2023 New Unworn
Php848,262
+ Php15,367 for shipping
Breitling
Premier B01 Chronograph Wheels and Waves Limited Edition 100
Php1,100,281
+ Php8,544 for shipping
Rolex Daytona
white gold black factory diamond 2000 | NEW ROLEX STRAP
Php1,951,616
+ Php10,757 for shipping
Promoted
Rolex Datejust 41
18k White Gold & Steel Dark Rhodium Diamond Dial Jubilee 126334
Php928,348
+ Php5,744 for shipping
Omega Speedmaster Broad Arrow
Rattrapante Like New Unpolished
Php393,397
+ Php9,220 for shipping
Omega Globemaster
Constellation Globemaster
Php1,014,226
+ Php6,147 for shipping
Popular
Omega Speedmaster Professional Moonwatch
18kt Moonshine-Gold Keramik Handaufzug Co-Axial Master Chronometer Chronograph Armband Leder Faltschließe 42mm Ref.310.63.42.50.
Php1,413,155
+ Php30,734 for shipping
Rolex Sea-Dweller
126600
Php780,585
+ Php9,220 for shipping
Popular
Omega Seamaster Aqua Terra
02/2022 top condition box papers
Php553,153
+ Php12,232 for shipping
Rolex Datejust 41
2023 New & Unworn
Php848,262
+ Php15,367 for shipping
Popular
Omega Constellation Double Eagle
Co-Axial Chronograph
Php630,049
+ Php8,544 for shipping
Rolex Day-Date II
41 rose gold - pink concentric roman President 2011 box + papers
Php2,301,985
+ Php10,757 for shipping
Promoted
Rolex Submariner Date
41mm Stainless Steel Black Dial - Ceramic Bezel (126610LN)
Php870,326
+ Php5,744 for shipping
Breitling
Premier B01 Chronograph 42 Norton 99% New
Php319,635
+ Php9,220 for shipping
Omega Seamaster 300
Co-Axial Master Chronometer
Php663,857
+ Php6,147 for shipping

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.