31.00 mm (diameter) x 3.30 mm (thick), round flat mineral crystal, generic (not genuine), fits Breitling® Chrono Model, supplied with crystal gasket. Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Breitling®. Breitling® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.