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Chronometer (COSC certified)

A watch called Chronometer (COSC certified) is tested and certified to meet certain precision standards. In Switzerland, only watches certified by the Contrôle Officiel Suisse des Chronomètres (COSC) may use the word ‘Chronometer’ on them. So, it is always COSC certified.

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Some brands like Rolex and Omega, have their own certification that even goes one or a few steps further than the ‘standard’ COSC. Although they explain what extra tests they do, we label those watches with COSC as well.

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Outside Switzerland, equivalent bodies such as the Japan Chronometer Inspection Institute, have certified watches to the same internationally recognized standards.

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Chronometer (COSC certified)

Rolex Daytona 2023 (ref. 1265xx)
Rolex

Rolex Daytona 2023 (ref. 1265xx)

by YWH Team 14 April 2023
by YWH Team

This is the new Rolex Daytona for 2023, and you could say this is the fourth generation since its introduction in 1963

TAG Heuer Aquaracer Professional 200 Full Gold
TAG Heuer

TAG Heuer Aquaracer Professional 200 Full Gold

by YWH Team 8 April 2023
by YWH Team

The TAG Heuer Aquaracer Professional 200 Full Gold comes in two new variants: solid 18k 5N rose gold, and solid 18k 3N yellow gold

Rolex Oyster Perpetual Celebration reference 277200 / 126000 / 124300
Rolex

Rolex Oyster Perpetual Celebration

by YWH Team 4 April 2023
by YWH Team

The Rolex Oyster Perpetual Celebration is one of the most colorful models the brand recently released

Rolex Perpetual 1908 reference 52508 / 52509
Rolex

Rolex Perpetual 1908

by YWH Team 28 March 2023
by YWH Team

Rolex introduces a complete new line of dress watches, the Rolex Perpetual 1908 and kills the Cellini line with this

TAG Heuer Monza Flyback Chronometer ref. CR5090.FN6001
TAG Heuer

TAG Heuer Monza Flyback Chronometer

by YWH Team 2 February 2023
by YWH Team

The TAG Heuer Monza Flyback Chronometer is a new round-shaped carbon and bolder version of the Monza model

Arnold & Son Tourbillon Chronometer No. 36 Gunmetal 1ETAS.B01A.T113S
Arnold & Son

Arnold & Son Tourbillon Chronometer No. 36 Gunmetal

by YWH Team 29 December 2017
by YWH Team

The Arnold & Son Tourbillon Chronometer No. 36 Gunmetal is a new version of the No. 36, now with dark grey DLC coating

Ulysse Nardin Classico Dog 8152-111-2/DOG
Ulysse Nardin

Ulysse Nardin Classico Dog

by YWH Team 28 December 2017
by YWH Team

To celebrate the Chinese New Year, which starts on the 16th of February 2018, UN releases this Ulysse Nardin Classico Dog

Omega Speedmaster Grey Side of the Moon Porsche Club of America Limited Edition 311.92.44.51.99.001
Omega

Omega Speedmaster Grey Side of the Moon Porsche Club of America Limited Edition

by YWH Team 23 December 2017
by YWH Team

The Omega Speedmaster Grey Side of the Moon Porsche Club of America Limited Edition is another special edition of the Moonwatch

Zenith Defy Lab 27.9000.342/78.R582
Zenith

Zenith Defy Lab

by YWH Team 19 December 2017
by YWH Team

The new Zenith Defy Lab is the most accurate mechanical watch in the world. A revolution in watchmaking by replacing the sprung balance

Ulysse Nardin Marine Tourbillon
Ulysse Nardin

Ulysse Nardin Marine Tourbillon

by YWH Team 13 December 2017
by YWH Team

The Ulysse Nardin Marine Tourbillon comes with a blue or white enamel dial and features UN’s new UN-128 caliber

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