![Brass Foil Dial Washers size 3 1/2, package of approx. 100](http://perrinwatchparts.com/cdn/shop/files/67-42014-3-5_c321a5bd-957b-4206-b1d5-2a80b592e3e6_300x202.jpg?v=1710961639)
Fits over the hour wheel, used as a spacer to prevent the hour wheel from moving, eliminating the possibility of the hour wheel disengaging.
Size 3 1/2 has an outside diameter of 3.50 mm.
Fits over the hour wheel, used as a spacer to prevent the hour wheel from moving, eliminating the possibility of the hour wheel disengaging.
Size 3 1/2 has an outside diameter of 3.50 mm.