Water Resistance Testing

[HogwldFLTR]

I'm a bit tired of running to the AD to have watches WR tested. I decided to pull the trigger on a home unit which should be able to test to 100m which seems useful for most of my needs. Pretty interesting reading up on testing. It's hard to find reasonable methods for testing at home to higher pressures. The only unit I could find supplies higher pressure but the check is to see if condensation occurs inside the watch. That would seem to late. Also hard to find any articles on how the pros test for WR at high pressures. Any inputs on this topic would be helpful. Anyone else doing home testing?

From a pure engineering perspective, pressurizing a watch in atmosphere and submerging it is really no test for WR but air pressure resistance as air and water diffuse differently. That said, watching for bubble escaping is at least benign to the watch.