This is the original bezel gasket / O-ring for various Seiko models. See the list for suitable calibres / models below. Contact us if you're not sure whether this gasket suits your watch. 

This gasket is suitable for many case numbers which starts with the following numbers: (please contact us for the full case number before ordering)

5M63-, 5M43-, 5M22-, 7N36-, 7N42-, 7A38-, 7T32-

THIS IS 1 PIECE ONLY