RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-01005
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April 27, 2018 at 7:06 am
#12262
BenchNotes 09121
Participant
Case 6 — 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.