square case watch

The importance of the "O" ring of a watch case

When we open the back cover of the watch case, you will find that there will be a rubber ring at the position of the back cover, which we call the rubber sealing ring or waterproof ring, the wrist watch technical term is called the "o" ring . In watches, most of them are round watch case, so most of the waterproof rings are round, and there are other shapes, such as square watch case, tonneau watch case, etc., there will be corresponding waterproof ring shapes and shapes match. However, the waterproof ring will also be damaged. There are usually two cases. One is the aging phenomenon after long-term use, and the second is improper operation when repairing and installing the caseback, that is to say, it is caused by human beings. The most important function of O ring is to waterproof and seal .Therefore, although the waterproof ring is not a valuable thing, it has an important role.

FAQ
1. Can you make copy or replica?
Yes, if you give me a sample, I can make it same. 
2. Lead time for samples and production
Lead time for sample would be around 30-35 days depends on the glass shape.
Lead time for mass production would be around 35-40 days. 
3. Can you make it in different shape?
yes, we can make it acc to your drawing or samples