![O-Ring Case Back Gasket, package of 4, ID 20.50 mm, OD 21.30 mm, thickness 0.40 mm](http://perrinwatchparts.com/cdn/shop/files/67-5125-20540_f8bc50cf-65cc-4baf-9249-ce0c1d67edb5_300x300.jpg?v=1710962695)
O-Ring Case Back Gasket, package of 4, ID 20.50 mm, OD 21.30 mm, thickness 0.40 mm
by Perrin
$3.90
SKU 67-5125-20540
O-Ring Case Back Gasket package of 4, ID 20.50 mm, OD 21.30 mm, thickness 0.40 mm