179386 ⎘
Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits Constructional details, e.g. disposition of coils
Timepiece incorporating an actuator comprising an electromechanical device
#2Timepiece movement fitted with an electromagnetic transducer
#3Escapement with escape wheel with field ramps and non-return
#4Natural escapement
#5Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
#6Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
#7Regulating element for wristwatch and mechanical movement comprising one such regulating element
#8Timepiece having a mechanical movement associated with an electronic regulator