How can you tell if an Omega Seamaster is vintage?

To tell if an Omega Seamaster is vintage, first look for the location of the serial number. If you find it on the inside of the caseback rather than on the bottom of one of the lugs, your timepiece is likely vintage. You can also cross-reference the serial number with trusted online resources to find out its age and explore its previous ownership history. On 1stDibs, shop a wide range of Omega Seamaster watches.