Educational toy clock
Elapsed time indicator
Electric clock
Electrical contact element and combined braking element for...
Electro-mechanical drive mechanism for watches and related...
Electroluminescent dial for an analog watch and process for...
Electromechanical trigger for alarm clocks and other...
Electronic time piece with time adjustment restricted to...
Electronic timepiece comprising two different displays
Electronic watch with cover plate integrally molded to a...
Escapement mechanism