COSC adds a more stringent chronometer standard to its offerings ✓ Excellence Chronometer Certification ✓ Discover it here ✓ ...

In our Excellence Era.

It could affect all manner of major brands, including Rolex, Omega and TAG Heuer.

The COSC is introducing an additional level of certification, an extension, not a replacement, of the existing standard. It will feature a daily rate tolerance of 6 seconds instead of 10, magnetic ...

The Contrôle Officiel Suisse des Chronomètres adds a new chronometer standard, certifying watches accurate to six seconds a day.

COSC is introducing a tougher certification tier, and your next watch might need to earn it.

Lex explains why chronometer watches matter ✓ And why the world of luxury needs accuracy ✓ To squander time, you must first ...

Why should you, a tech person, care about Omega creating something called the Master Chronometer Certification? Well, first let me tell you what’s up. So nice watches are usually Contrôle Officiel ...

Here’s a fun fact: Only about 6 percent of watches made in Switzerland come with a COSC chronometer certification (to the uninitiated, that means it’s accurate to within -4/+6 seconds per day).

It’s not generally well-known that Mido is actually one of the top 5 brands producing the most COSC-certified watches, but there you have it — the 100-year-old company consistently delivers highly ...