Pressure testing a "Watchco" SM300

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Archer in your experience is humidity a consideration before finally casing up a 300 and the air that is in the case does that cause corrosion of components over the years
 
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There is humidity at some level in all air, so it can't be avoided completely, but controlling humidity in the watchmaking shop is definitely something I do. Unless there is excess humidity in the air when the watch is cased, it won't be a problem.

Cheers, Al
 
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I've always paid for it but never seen it done.
Great informative article
 
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For those that have bought one "sight unseen" I can recommend you get a pressure test before taking your shiny new SM300 anywhere near water.
 
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Just now reading this. Great information. Thank you.
 
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Invaluable info, personally I never thought they would be tested with actual fluid... just goes to show 😵‍💫
 
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Very informative, thank you for posting step-by-step and the explainations.
 
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Fantastic thread. It's always good to get an inside view on the work done on our beloved watches. Thanks Al!
 
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Much appreciated Al. I’ve wondered how a Watchco would do with this type of test...

Thanks