27.00 mm round domed sapphire crystal, height 2.60 mm, generic (not original) to fit Omega® case REF 1661204, 1681201, 16612043661204, 3681201, 3681213, 3681218, 3681225, 3682008, 4681201, 4681208, 4681211, 4681225, 4681314, 4681354, 4682008. Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Omega®. Omega® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.