1.75mm Height I Ring 16mm to 25.5mm Inner Diameter Waterproof Plastic Gasket for Watch Crystal 2.0mm-3.0mm Thickness Glass W4665

1.75mm Thick Waterproof I-ring 16mm to 25.5mm Inner Diameter Plastic Gasket for Watch Crystal Round Glass

 

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 1.75mm, thickness appr. 0.40mm, fits for 2.0mm-3.0mm thick watch crystal

 

Diameter(Outside Diameter X Inner Diameter)mm

16.8 X 16mm

17.3 X 16.5

17.8 X 17

18.3 X 17.5

18.8 X 18

19.3 X 18.5

19.8 X 19

20.3 X 19.5

20.8 X 20

21.3 X 20.5

21.8 X 21

22.3 X 21.5

22.8 X 22

23.3 X 22.5

23.8 X 23

24.3 X 23.5

24.8 X 24

25.3 X 24.5

25.8 X 25

26.3 X 25.5

 

1 piece per order, please choose the diameter that you need.

 

Package included: 1 piece * Waterproof I-ring