0.6mm Height Waterproof Glass I-ring Plastic Gasket 36mm 36.5mm 37mm 37.5mm 38mm 38.5mm 39mm 39.5mm 40mm for Watch Crystal W4213

0.6mm Height Waterproof Glass I-ring Plastic Gasket 36mm 36.5mm 37mm 37.5mm 38mm 38.5mm 39mm 39.5mm 40mm for Watch Crystal W4213

It is used on watch crystal to make the watch waterproof, NOT watch back case cover! for professional users!

you have to know the exact diameter and thickness of your watch crystal before buying.

Height 0.6mm, thickness appr. 0.35mm, fits for 0.7-1.0mm thick watch crystal

INNER Diameter:36/36.5...39/39.5/40MM

Please note that this is inner diameter, NOT outside diameter

1 piece per order

Package included: 1 piece