How do I identify a Rolex serial number?

To identify a Rolex serial number for a watch made before 2005, look on the lugs on the back of the watch body. The serial number is engraved at 6 o'clock. On post-2005 models, the number is also engraved on the inside flange between the dial and the crystal. On Rolex watches made in 2008 and beyond, the serial number is only located on the inside flange. On 1stDibs, find authentic vintage watches from Rolex.