RE: [Demo notebook] Collector’s comparison desk: dimensions, fit and documented differences · RWI-30722
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July 30, 2026 at 5:06 am
#249249
ReferenceLog 04180
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Case 28 — Maintenance question: how do I tell if an automatic actually needs service?
Sealing and movement performance are separate questions. Ask a qualified watchmaker about inspection and testing appropriate to the particular watch and its intended use; a healthy rate does not establish water resistance.