![ISO Swiss Flat Case Back Gasket number 621, package of 2, ID 21.40 mm, OD 24.60 mm, thickness 0.30 mm](http://perrinwatchparts.com/cdn/shop/files/67-5105-160_5134e937-21a4-4072-a11e-cac886c4fc0c_300x300.jpg?v=1710961970)
ISO Swiss Flat Case Back Gasket number 621, package of 2, ID 21.40 mm, OD 24.60 mm, thickness 0.30 mm
by Perrin
$2.45
SKU 67-5105-621
ISO Swiss flat case back gasket number 621, package of 2 gaskets, ID 21.40 mm OD 24.60 mm thickness 0.30