The Omega serial number decoderThe serial number on your Omega watch will usually be found either laser etched in tiny digits on the back or for older watches it may be inside the case.
It will be a number (no letters) between 5 and 9 digits long. The number consisting of 3 digits, a dot, then 3 digits is not the serial number, that is the model reference number, if requested I could add a decoder for that too but it wont date the watch.
This does not validate if a watch is genuine or not, it purely translates the date code to find the year of manufacture. If the watch type was not being manufactured during the year suggested by the serial number it suggests a fake.