Omega® Case Back Gasket ("Sans Fil" polyurethane), inside diameter 28.76 mm, outside diameter 30.00 mm, see all case numbers in description AS 1562 The winding stem is at

The winding stem is at the 12 o'clock position

fits Omega® 361

pallet cock (pallet bridge)

Genuine Omega® lower bridge for automatic device

remove the white plastic clip underneath the crown

Omega® Case Back Gasket ("Sans Fil" polyurethane), inside diameter 28.76 mm, outside diameter 30.00 mm, see all case numbers in description AS 1562 The winding stem is atOmega Case Back Gasket ("Sans Fil" polyurethane), inside diameter 28. 76 mm, outside diameter 30. 00 mm, see all case numbers in description Case Back Gasket Round "Sans Fil" polyurethane, inside diameter 28. 76 mm, outside diameter 30. 00 mm, height 0. 80 mm, to fit Omega case numbers: 1660285, 1660295, 1660296, 1680303, 1750035, 1750300, 1750302, 1750303, 1960186, 1960190, 1960245, 1960247, 1960250, 2680303, 2750313,3660885, 3660895, 3660896,