179724 ⎘
Apparatus for measuring unknown time intervals by mechanical means using a mechanical oscillator; Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement
MECHANISM FOR MEASURING TIME FOR A TIMEPIECE MOVEMENT, IN PARTICULAR A CHRONOGRAPH MECHANISM
#2LEVER DEVICE FOR A CLOCK MECHANISM
#3Coupling system for a chronograph
#4Mechanical connection device
#5Device for a timepiece
#6Display mechanism
#7Tilting coupling device for timepiece
#8Dual display timepiece
#9Chronograph mechanism