Bulova® Case Back Gasket BU-G772 case reference 386-3 386-4
o-ring, case reference 386-3, 386-4, 386-5, 386-6, outside diameter 29.75 mm, inside diameter 27.95 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.