![O-Ring Case Back Gasket number 31, package of 2, ID 28.70 mm, OD 30.30 mm, thickness 0.80 mm](http://perrinwatchparts.com/cdn/shop/files/67-5117-31_27bda955-c82e-4872-8f9b-e2e30ff4e03b_300x300.jpg?v=1710963248)
O-Ring Case Back Gasket number 31, package of 2, ID 28.70 mm, OD 30.30 mm, thickness 0.80 mm
by Perrin
$2.50
SKU 67-5117-31
O-Ring Case Back Gasket number 31, package of 2, ID 28.70 mm, OD 30.30 mm, thickness 0.80 mm