26.5 mm round domed sapphire crystal, height 2.10 mm, generic (not original) to fit Omega® case REF 3284, 3285, 3291, 3292, 11353, 7681710, 7681711, 7681712, 7681714, 7681715, 7681716, 7681717, 7681718, 7681721, 8501, 8681710, 8681711, 8681712, 8681. 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.