RE: [Demo notebook] Workbench questions: what to record before asking for service · RWI-01615
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June 30, 2018 at 2:42 pm
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Case 23 — 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.