30.90 mm x 26.80 mm x 1.00 mm thick, flat, oval shaped sapphire crystal, generic (not genuine). 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.