Multisize Waterproof O-ring Set Rubber Gaskets for 1.0mm Thick Watch Repair Watchmaker Tools

Feature:
The watch waterproof rubber ring is installed on the watch case to cover the gap between the watch band and the movement.
Application: The watch Gaskets kit plays an important role in the waterproof of the watch. It is suitable for watch repair and very suitable for watchmakers.
High-quality watch rubber gasket are d safe to use.
Quantity: 49 sizes, 2 pieces for each size, 98 pieces in total.
Package includes: 1 Set Waterproof O-ring.

Specifications
Material: High quality rubber
Thickness: 0.8mm
Use on: 1.0mm thick watch crystal glass
Quantity: 49 sizes, 2 pieces for each size, 98 pieces in total
Diameter(O.D. X I. D) unit: mm
16.7 x 16.0 21.7 x 21.0 26.7 x 26.0 31.7 x 31.0 36.7 x 36.0
17.2 x 16.5 22.2 x 21.5 27.2 x 26.5 32.2 x 31.5 37.2 x 36.5
17.7 x 17.0 22.7 x 22.0 27.7 x 27.0 32.7 x 32.0 37.7 x 37.0
18.2 x 17.5 23.2 x 22.5 28.2 x 27.5 33.2 x 32.5 38.2 x 37.5
18.7 x 18.0 23.7 x 23.0 28.7 x 28.0 33.7 x 33.0 38.7 x 38.0
19.2 x 18.5 24.2 x 23.5 29.2 x 28.5 34.2 x 33.5 39.2 x 38.5
19.7 x 19.0 24.7 x 24.0 29.7 x 29.0 34.7 x 34.0 39.7 x 39.0
20.2 x 19.5 25.2 x 24.5 30.2 x 29.5 35.2 x 34.5 40.2 x 39.5
20.7 x 20.0 25.7 x 25.0 30.7 x 30.0 35.7 x 35.0 40.7 x 40.0
21.2 x 20.5 26.2 x 25.5 31.2 x 30.5 36.2 x 35.5

Package includes:
1 Set Waterproof O-ring