Bulova® Case Back Gasket BU-G4121
o-ring, case reference C802023, outside diameter 28.40 mm, inside diameter 27.00 mm
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Bulova®. Bulova® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic crystals may devalue your watch.