RE: Beginner glossary Q&A: complication, caliber, jewel count, power reserve · RWI-29594
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April 4, 2026 at 7:21 am
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MovementIndex 01375
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Caliber is the movement's model designation, like a part number. Two watches from different brands can share the same caliber family with different finishing or regulation. On a spec sheet it tells you what's inside and roughly what service parts are available. It doesn't tell you how well that particular example was adjusted.