AndrewD
[HoMe Moderator]
12829
COSC certification of the Calibre 11
The Calibre 11 flyback chronograph of the Chopard Chrono One undergoes official COSC certification. Depending on which series of the Chrono One you have, either “Certified Chronometer” or “Chronometer” is displayed on the dial. Testing is performed at a COSC Laboratory over a 15 day period and in 5 different positions and across 3 temperatures. There are seven different measurements that must all be passed to in order to gain COSC certification, the most well known of these being a daily variation in rate of within -4 and +6 seconds. Click here to read more ...
COSC certification of the Calibre 11
The Calibre 11 flyback chronograph of the Chopard Chrono One undergoes official COSC certification. Depending on which series of the Chrono One you have, either Certified Chronometer or Chronometer is displayed on the dial. Testing is performed at a C...
