RE: [Demo notebook] Workbench questions: what to record before asking for service · RWI-12503
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July 6, 2021 at 6:25 am
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Case 7 — What a water-resistance claim does and does not establish
Ask a qualified watchmaker about a suitable test for that individual case and record the test date and method. A photograph or a caseback engraving is not proof of water resistance.