Bulova® Case Back Gasket BU-G782
o-ring, case reference Q521, outside diameter 33.00 mm, inside diameter 32.00 mm, case reference 378, 378-1, 378-2, 378-3, 378-4, 378-5, 378-6, 378-7, 378-8, 378-9, 378-10, 378-11, 378-12, 379, 379-1, 379-2, 379-3, 379-4, 379-5, 379-6, 379-7, 380, 380-1, 380-2, 380-3, 501, 515, 745, 745-1, 753, 801, 801-1, 824, 827, 849, 849-1, 971, 971-1, 979, C802043, C815002
* 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.