Each luxury watch from KRONOS 360 collection gets evaluated by a watchmaking expert. Each second-hand watch watch gets control and we systematically check over 9 points to make sure each watch is authentic.

- the regularity of the rate
- the origin of the watch
- the previous owners
- the serial number of the watch
- the year of the last service
- the reference of the calibre
- the control of the entire mechanism
- the year of production and the year of commercialisation
- the certificate of authenticity
atelier réparation montre kronos 360