FHH | Official Rating Certificate: Verification of Watch Quality
O

Official rating certificate

官方评级证书 Official rating certificate Bulletin officiel de marche

Glossary

Thematic Technic

A document, issued by an Observatory or an official ratings bureau, that certifies the quality of a watch which has proven, in trials, to meet with a given standard. Only a watch that has received an official rating certificate can be called a chronometer.