33.00 mm (large dia.) x 32.00 mm (smaller dia.) x 3.50 mm thick, round flat stepped sapphire crystal, generic (not genuine), fits Audemars Piguet® Royal Oak. Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Audemars Piguet®. Audemars Piguet® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.