Quick Summary
Luxury watches are about to get a lot more accurate.
That's because a body which certifies their accuracy is upgrading its testing process this year.
If you're buying a luxury watch and want to ensure its as accurate as possible, you'll want to look out for something called COSC certification. That classification from the Contrôle Officiel Suisse des Chronomètres certifies that a watch movement runs within certain parameters for accuracy.
