29.05 mm x 29.05 mm x 2.70 mm thick square domed flat bottom beveled sapphire crystal, generic (not genuine), fits Cartier® Santos 100 XL. Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Cartier®. Cartier® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.