1.20mm Height Waterproof I Ring 36mm to 40mm Inner Diameter Plastic Gasket 0.5mm Width for Watch Crystal Round Glass W8156

1.20mm Height Waterproof I Ring 36mm to 40mm Inner Diameter Plastic Gasket 0.5mm Width for Watch Crystal Round Glass W8156

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.

Gasket Thickness: 1.20mm
Width:0.5mm,  

It is used for 1.3mm-1.7mm thick watch crystal glass

Diameter(Inner Diameter.):36mm to 40mm

1 Piece per order, please choose the size that you need.

Package included: 1 piece