![ISO Swiss Flat Case Back Gasket number 109, package of 2, ID 19.50 mm, OD 20.60 mm, thickness 0.50 mm](http://perrinwatchparts.com/cdn/shop/files/67-5105-109_855418fb-6600-4b66-b641-20efacf63d3a_300x300.jpg?v=1710961903)
ISO Swiss Flat Case Back Gasket number 109, package of 2, ID 19.50 mm, OD 20.60 mm, thickness 0.50 mm
by Perrin
$3.00
SKU 67-5105-109
ISO Swiss flat case back gasket number 109, package of 2 gaskets, ID 19.50 mm OD 20.60 mm thickness 0.50