![O-Ring Case Back Gasket number 21, package of 2, ID 26.70 mm, OD 28.00 mm, thickness 0.65 mm](http://perrinwatchparts.com/cdn/shop/files/67-5117-21_c861e79c-e589-4662-b54e-12c42300cc8c_300x300.jpg?v=1710963091)
O-Ring Case Back Gasket number 21, package of 2, ID 26.70 mm, OD 28.00 mm, thickness 0.65 mm
by Perrin
$2.50
SKU 67-5117-21
O-Ring Case Back Gasket number 21, package of 2, ID 26.70 mm, OD 28.00 mm, thickness 0.65 mm