How do I date my Omega watch by serial number?

To date your Omega watch by serial number, first locate the number. On newer watches, you can find the seven- or eight-digit number on the back of the case. You will need to have a jeweler open an older watch to find the serial number. Once you know the number, you can consult Omega to determine the date. Find a range of expertly vetted Omega watches on 1stDibs.