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New toy
Nov 14, 2013 7:52:39 GMT -8
Post by cannop on Nov 14, 2013 7:52:39 GMT -8
I bought myself a new pressure tester a week or so ago capable of testing up to 3,000m depth pressure. It was designed and built by Bry1975 who many of you will know. It was shipped to me disassembled in two separate deliveries as that was the safest way of going about protecting the more delicate components. Just the chamber alone weighs in around 9kg and that would have made mincemeat of the pump assembly had they been shipped together! I finally got around to assembling it all today and giving it a try out. The empty chamber Is filled with water and the watch placed inside with the movement removed, this SKX was just for photographic purposes! Then the top plate is fitted and the chamber pressurised, it's at just over 1,000m here - no watch inside for this trial run though! You can either monitor for pressure dropping to see if a case is leaking, or once removed do a condensation test on a warming plate. It displays the pressure achieved in Kg/cm2 PSI Or Bar Kg/cm2 is the closest to metres depth so 30Kg/cm2 would be 300metres depth assuming water density is 1000kg/m3. I'm very pleased with it and it's great to finally be able to test most watches to their rated depth.
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sdoocms
Is a Permanent Fixture
Carl
Posts: 5,296
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New toy
Nov 14, 2013 8:10:21 GMT -8
Post by sdoocms on Nov 14, 2013 8:10:21 GMT -8
That will be a handy tool for you, congrats!
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New toy
Nov 14, 2013 9:37:39 GMT -8
Post by Groundhog66 on Nov 14, 2013 9:37:39 GMT -8
How freaking cool is that, NICE!
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New toy
Nov 14, 2013 9:40:48 GMT -8
Post by bobbymike on Nov 14, 2013 9:40:48 GMT -8
Very cool! What a beautiful piece of craftsmanship!!
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New toy
Nov 14, 2013 10:31:19 GMT -8
Post by 69ChevelleSS on Nov 14, 2013 10:31:19 GMT -8
Nice bit 'o kit! Congrats!
One question . . . since you can't see the watch, how do you know if there is any leakage?
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New toy
Nov 14, 2013 10:41:20 GMT -8
Post by dad-the-diver on Nov 14, 2013 10:41:20 GMT -8
that's the very one the Bry tested my 6309 to 100 meters after he relumed the hands. gona be a good one for you Duncan chinathumbsup.gif
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New toy
Nov 14, 2013 10:53:36 GMT -8
Post by cannop on Nov 14, 2013 10:53:36 GMT -8
Nice bit 'o kit! Congrats! One question . . . since you can't see the watch, how do you know if there is any leakage? You remove the movement, insert the empty case then pressurise and monitor for a pressure drop, or place the watch on a warming plate to do a condensation test when it's removed from the chamber. When you test a watch your basically testing the integrity of all the seals, and the crystal. You'd have to be bonkers to do this first time around with the movement in place as if it leaked the watch would be ruined at these pressures. Once you have proved the integrity you test again with the movement in place, if the seals were sound on the empty run they'll be sound on the assembled run so long as you follow basic good assembly practice.
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New toy
Nov 14, 2013 10:57:30 GMT -8
Post by cannop on Nov 14, 2013 10:57:30 GMT -8
How freaking cool is that, NICE! It's an Anglo/American collaboration Tim, the pump and hydraulic hose are American and the chamber is UK designed and built. Actually, you could add Italian to the list as I ordered the black clamp lobes from an Italian manufacturer.
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New toy
Nov 14, 2013 11:03:58 GMT -8
Post by Groundhog66 on Nov 14, 2013 11:03:58 GMT -8
How freaking cool is that, NICE! It's an Anglo/American collaboration Tim, the pump and hydraulic hose are American and the chamber is UK designed and built. Actually, you could add Italian to the list as I ordered the black clamp lobes from an Italian manufacturer. Great mash up, I love it!
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New toy
Nov 14, 2013 11:18:52 GMT -8
Post by 69ChevelleSS on Nov 14, 2013 11:18:52 GMT -8
Nice bit 'o kit! Congrats! One question . . . since you can't see the watch, how do you know if there is any leakage? You remove the movement, insert the empty case then pressurise and monitor for a pressure drop, or place the watch on a warming plate to do a condensation test when it's removed from the chamber. When you test a watch your basically testing the integrity of all the seals, and the crystal. You'd have to be bonkers to do this first time around with the movement in place as if it leaked the watch would be ruined at these pressures. Once you have proved the integrity you test again with the movement in place, if the seals were sound on the empty run they'll be sound on the assembled run so long as you follow basic good assembly practice. Thanks for the response Duncan! I'm not a tinkerer so I have no idea what voodoo you watch fiddlers do. I'm about at my limits when I change the batteries on my quartz watches!
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HiBeat
Global Moderator
SEIKO Iko Iko GDTRWS
Posts: 8,642
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New toy
Nov 14, 2013 13:19:25 GMT -8
Post by HiBeat on Nov 14, 2013 13:19:25 GMT -8
Quite impressive and really cool. Why not go for broke and pressure test your favorites with the movements inside ? (Just Kidding)
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donciccio
Is a Permanent Fixture
Posts: 6,160
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New toy
Nov 14, 2013 13:44:32 GMT -8
Post by donciccio on Nov 14, 2013 13:44:32 GMT -8
Fantastic!!
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