Crown (watch)

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Crown with inserted sapphire - cabochon

Crown has in small watches two meanings, a button-like knurled operating element for setting the time and manual winding of the power reserve (synonym winding crown ) or a toothed wheel , which in the movement of the elevator drive with the locking drive of the barrel connects.

Winding crown

Depending on the design, the winding crowns are called Breguet crown , Louis XV round , Louis XV flat , beveled , onion crown or cylindrical crown . By turning the crown, the spring in the barrel can be tensioned (only in one direction of rotation). The time and occasionally also the calendar date can be set by pulling out and turning . The winding crown is attached to the end of the winding shaft, which acts on the movement from the outside through the watch case .

More crowns

In complicated watches often more crowns occur to additional functions set and - in additional barrels - they also raise such. B. the alarm time or the adjustment of internal bezels .

A variant of the winding crown is the crown with pushers, which is occasionally used in chronographs .

See also

literature

  • Otto Böckle, Wilhelm Brauns: Textbook for the watchmaking trade. Work skills and materials. 8-10 Edition. Wilhelm Knapp, Halle (Saale) 1951 (reprint, edited by Michael Stern. Heel, Königswinter 2010, ISBN 978-3-86852-288-4 ).
  • Hermann Brinkmann: Introduction to watchmaking (= The watchmaking school. Vol. 2). 10th unchanged edition. Wilhelm Knapp, Düsseldorf 2005, ISBN 3-87420-010-8 .
  • George Daniels : Watchmaking. Updated 2011 edition. Philip Wilson Publishers, London 2011, ISBN 978-0-85667-704-5 .

Individual evidence

  1. ↑ GA Berner: Illustrated specialist dictionary of watchmaking (electronic version), keyword 'Krone'. Retrieved August 23, 2013.