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Watch pressure/waterproofness tester: bubbles

kuhlman549
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kuhlman549 New Member

kuhlman549

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First, hello. New person on here. Anyway, I saw this question somewhere: when I put watch in the water and release the air pressure, bubbles come out from under the bezel. Then stop. Is this a leak or trapped air? Rolex Submariner used.          My experienced answer, and info for anyone. When the air and pressure is released any air bubbles outside the watch and under the water expand and grow from really tiny to large and so then escape from where they are. Under the bezel. They usually just come out from under the bezel and hang on the watch. This is not a leak. If a leak there is a stream of bubbles or the bubbles keep expanding and release to the surface and another bubble forms, etc...        When there is no leak the compressed air compresses on the OUTSIDE of the watch and when put in the water and air pressure released from tank there is nothing to expand from inside the watch because there was no extra air pressured into the watch thru a leak in the case, which would expand inside the watch when pressure released and cause air to go out the watch hole leak, or even blow out your crystal. Release the air semi slowly from the tester, less chance of crystal blowing out. If released real fast it causes the watch to have the bends if there is a leak hole and  blows the crystal out. Like a person to fast to the surface. Being Jettisoned into outer space comes to mind. All air in you escapes from you really fast into outerspace and blows your crystal out! Ha!   So if bubbles come out from under bezel, but stop growing immediatly and just hang on watch, no leak. Grow bigger and release and repeat or string of bubbles, that's a leak. And water does not get in a watch that does the leak type bubbling because it's pressurized air escaping so it's not trading places with the water like a watch in a bathtub does that's not pressurized. If it is bubbling in a leak like manner like I described, do remove immediately and fix or take to an AD. And this tester works great for me. It goes to 6 ATM/200 feet. Im not a diver so i usually test at 3ATM/100 feet. Less sress on my watches and their seals and plenty for swimming. Happy Submarinering! Hulk style!

 

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