How can I check my Omega serial number?

How you check your Omega serial number depends on the age of your watch. On vintage models, the serial number is engraved on the inside of the case back. On later ones, it's on the back of one of the lugs (the part of the watch that connects the case to the bracelet or strap). You can cross-reference this number online to verify that it's valid, and view the ownership history, if the watch is preowned. Shop a range of Omega watches on 1stDibs.