35.50 mm x 1.90 mm (thick) flat mineral crystal with black trim and white numbers “TACHOMETER”, this is a generic replacement (not original) crystal for the Omega® crystal TN5237TA. 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.