Balance spring

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Balance spring
(or hairspring)

Spiralabzählgerät

A balance spring is a fine spiral or helical spring used in mechanical watches, marine chronometers, and other timekeeping mechanisms to control the rate of vibration of the balance wheel. A balance spring usually has a regulator lever to adjust the rate of the timepiece.


Types of balance springs

TERMINOLOGIE NUMEROTATION

40.140 (0734)
de Spiralfeder reguliert nl
en Timed hairspring pt Espiral regulado
es Espiral regulado ru Спираль правленная
fr Spiral réglé
it Spirale regolata
Zahnrad ico.jpg


Literature