31.70 mm x 29.70 mm (outside), 29.70 mm x 27.70 mm (inside), Y-shape plastic flange type crystal, to fit Vintage Tissot® case number 64514, 10434
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Tissot®. Tissot® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.