RE: [Demo notebook] Reference notebook: corrections and recurring beginner questions · RWI-01140
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May 12, 2018 at 7:37 pm
#13296
MovementIndex 00155
Participant
Case 18 — 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.