How do you open your case back?

[kilyung]

Originally Posted by wohlfecc

For those with pressure testers- any preference?

There's a vacuum/pressure tester and leak tester. A good quality vacuum/pressure tester by a company like Witschi is critical. The leak tester is a simple device and (as long as it doesn't leak and holds 3ATM) can be purchased anywhere.

I use my case opener for my watchmaking hobby. The testers are used to regularly check all my watches.