25.93 mm x 25.45 mm x 1.00 mm (thick) Generic T-shape with cut corners flat mineral crystal, generic (not original). Using generic crystals may devalue your watch.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Waltham®. Waltham® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.