Electric alarm clock
Electric alarm wristwatch including cylindrical sound tube for t
Electrical connection construction for electronic timepiece
Electricity supply structure for a piezoelectric vibrator
Electro-acoustic device for alarm watch
Electromagnetic acoustic transducer
Electronic alarm watch
Electronic converter for converting an acoustic signal into...
Electronic instrument for scheduled data handling
Electronic timepiece
Electronic timepiece
Electronic timepiece
Electronic timepiece equipped with alarm
Electronic timepiece including a piezoelectric alarm
Electronic watch having a stepping motor equipped with an alarm