The easiest and best way to date your modern Tudor watch is if you have the original certificate for your watch. If you do, the date of which the watch was purchased should be on the certificate. Simply confirm that the serial number on your Tudor watch matches the serial number that is engraved on your Tudor.
If you don’t have the original certificate for your watch, it gets a bit trickier. The good news is that Tudor has information about every single watch that has left the factory, which is registered through their individual serial numbers. The bad news is that this information can be difficult, if not impossible to access.