RE: [Demo notebook] Workbench questions: what to record before asking for service · RWI-04031
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March 1, 2019 at 3:11 pm
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Case 19 — 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.