Chronometer
COSC stands for “Contrôle Officiel Suisse des Chronomètres,” which translates to “Official Swiss Chronometer Testing Institute.” It is a certification given to watches that have passed a series of tests for precision and accuracy, as established by the Swiss Federal Institute of Metrology. To receive COSC certification, a watch must meet certain criteria for performance within certain tolerance levels over a period of 15 days and in various positions and temperatures. COSC certification is considered a high standard of accuracy for mechanical watches.
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Omega Seamaster Planet Ocean 600M Co‑Axial Chronometer 45.5 mm 232.30.46.21.01.001 Box+Booklet
4,399 € Add to cart -
Tudor Black Bay Pro 39 Rubber/Leather M79470-0003 Full set NEW
3,599 € Add to cart -
Omega Constellation Men Co‑Axial Chronometer 38 Gold&Steel 23.20.38.21.02.002 – Full set
4,099 € Add to cart -
Breitling Chrono Cockpit A13358 Galactic Box + Booklet, Serviced
2,429 € Add to cart -
Vintage Omega Seamaster Professional 300 M Chronometer ref. 2532.80.00 – Rare Full set, Superb condition
2,999 € Add to cart -
Rolex Yacht-Master 40 ref. 126622-0002 Bright Blue dial – Superb, Polished per OEM specs
11,499 € Add to cart -
Rolex Datejust 41 Bright black dial ref. 126334-0017 – Superb condition, Full set
11,999 € Add to cart -
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41 ref. 220.12.41.21.03.001 – NEW
4,899 € Add to cart -
Omega Seamaster Railmaster 38 ref. 220.10.38.20.01.002 The 1957 Trilogy – NEW
6,999 € Add to cart -
Omega Seamaster Planet Ocean 600M 43.5 Co-Axial Master Chronometer ref. 215.32.44.21.01.001 – 2017, Full set, Superb
4,999 € Add to cart -
Omega Seamaster Planet Ocean 600M 43.5 Co-Axial Master Chronometer ref. 215.30.44.21.03.001 – 2022, Full set, Superb
5,499 € Add to cart -
Omega Seamaster Diver 300M Titanium 42 ref. 210.90.42.20.01.001 007 James Bond No time to die – NEW
7,599 € Add to cart -
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41 ref. 220.12.41.21.03.002 – Full set, Polished
4,599 € Add to cart -
Breitling Super Avenger II 48 Chronometer ref. A13371111 – Full set, Serviced + Polished
3,499 € Add to cart -
Chopard Mille Miglia 42 Classic Chronograph – Black dial, COSC, NEW
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Omega Seamaster Professional 300 M Chrono Diver Chronometer ref. 2594.52.00 America’s Cup
3,299 € Add to cart -
Chopard Alpine Eagle XL Chrono Chronometer 44 ref. 298609-3002 Absolute Black dial – NEW
14,199 € Add to cart -
Omega Seamaster Diver 300M Co-Axial Master Chronometer Yellow Gold & Steel ref. 210.22.42.20.03.001 – Full set, Mint
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Rolex Cosmograph Daytona Everose Gold ref. 116505 Chocolate dial – 2020, Full set, Polished
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Omega Seamaster Aqua Terra GMT 150M 43 Red Gold ref. 231.53.43.22.02.001 – Superb condition