Find the case-back number

To obtain your watch case-back number, look on the reverse of your watch. The case-back is in the following format: A000-S015234 and consists of the calibre number and case number.

Find the model number

Alternatively, if you cannot read or locate the case-back number, use the "I don't know my case-back number" option and enter the model number from the swing tag provided when you purchased your watch. The model number is always in the following format XX0000-00X.