179384 ⎘
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 indirectly, i.e. without mechanical connection, contacts, e.g. by magnetic or optic means
MECHANICAL TIMEPIECE
#2Mechanical Watch
#3MECHANICAL TIMEPIECE
#4Timepiece regulating mechanism with optimised magnetic escapement
#5Magnetic or electrostatic pivoting of a mobile timepiece element
#6Regulating body for a wristwatch
#7Magnetic and/or electrostatic pivot
#8Magnetic and/or electrostatic pivot