24.40 mm x 20.90 mm x 2.00 mm thick y-shape, double domed, curved (12 to 6 and 9 to 3) sapphire. Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Swiss Army®. Swiss Army® warranty does apply to parts supplied by H. & W. Perrin Company Limited.