20.45 mm x 20.45 mm x 2.50 mm (height) curved (6/12) sapphire crystal, generic (not genuine), fits Cartier®. 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.