Home > Terms > English, UK (UE) > Rotor

Rotor

The part of an automatic (or self-winding) mechanical watch that winds the movement's mainspring. It is a flat piece of metal, usually shaped like a semicircle, that swivels on a pivot with the motion of the wearer's arm.

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  • Part of Speech: noun
  • Synonym(s):
  • Blossary:
  • Industry/Domain: Timepieces
  • Category: Watches
  • Company:
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  • Acronym-Abbreviation:
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