19.00 mm x 1.50 mm (thick) round flat bottom, curved top (12 to 6) mineral crystal, generic (not genuine), fits Esquire® reference 1901. Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Esquire®. Esquire® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.