Mechanical timepiece with timed annular balance rotating...
Mechanical timepiece with timed annular balance rotating...
Mechanical timepiece with tourbillon mechanism
Mechanically regulated timepiece
Mechanically regulated timepiece
Mechanism to avoid rate variations due to gravitation in a...
Mechanism to avoid rate variations due to gravitation in a...
Memorialized case clocks
Metronome
Metronome mechanism
Micro-mechanical part made of insulating material and method...
Movement for a timepiece with plural escapements
Oblique tourbillon
Pallet-stones for a clockwork movement
Pallet-stones for a clockwork movement
Pendulum arrangement of pendulum clock
Pendulum device for clocks
Piezoelectric drive device and electronic device
Regulating element for wristwatch and mechanical movement...
Regulating element for wristwatch and mechanical movement...