Breguet spring/en
Version vom 22. Januar 2009, 04:02 Uhr von 87.157.226.43 (Diskussion) (Die Seite wurde neu angelegt: '''Breguet spring''' Balance spring with terminal curve whose final curve is formed around the actual balance spring according to precise calculations. With this inven...)
Breguet spring
Balance spring with terminal curve whose final curve is formed around the actual balance spring according to precise calculations. With this invention, Abraham-Louis Breguet was able ti considerably reduce the effects of the dynamic balance error of a flat Archimedean balance spring.