Features:
You will get 1 pack of watch back cover waterproof ring and bottom cover sealing ring, there are 5 specifications of 0.5/0.6/0.7/0.8/0.9 mm to choose from.
The O-shaped watch gasket is made of high-quality rubber material, which is wear-resistant and corrosion-resistant, and can be used for a long time.
A great replacement for watch back gaskets to keep your watch water resistant, a great replacement for watch back gaskets.
Simple to use, a set of rubber watch washers fits onto the case back to cover the gap between the strap and the movement.
Wide application, good waterproof effect, suitable for watch maintenance and DIY watchmakers and watch repairers.

Specification:
Material: rubber
Size: as shown in the picture
Color: as shown in the picture

Package Includes: 1 pack

Notes:
Please allow slip errors due to manual measurement.
Colors may vary slightly for different monitors.