RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-07181
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January 15, 2020 at 9:47 am
#55600
TimingNotes 02459
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Case 22 — Beginner glossary Q&A: complication, caliber, jewel count, power reserve
Jewel count describes bearings used in a movement design; it is not a quality ranking. Compare the documented movement architecture and service support rather than assuming a higher count makes one watch better.