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pressure test h558

  1. WATCHMAKING & TINKERING
    Hi All, Hope you are all well. Please can you let me know who is the best to see for pressure testing dive timepieces here in the UK. I have a couple of H558s (1 original, 1 custom) where I am outfitting them with new gasket sets and would love to be able to test them to 150m as indicated. I...
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