RE: [Demo notebook] Collector’s comparison desk: dimensions, fit and documented differences · RWI-10558
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December 21, 2020 at 4:27 pm
#84272
BenchNotes 01131
Participant
Case 8 — 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.