Device for adjusting a time indicator
Device for adjusting the minutes hand of a watch with at...
Device for adjustment of electrical clocks
Device for controlling correction operations of a time display d
Device for correcting digital display used in electronic timepie
Device for correction of time date displayed by an electronic wa
Device for regulating the minute hand of a clock having at...
Digital input means for miniature type electronic devices
Disconnecting-gear device for a timepiece gear train
Display correcting mechanism and timepiece having display...
Display device for watch
Double poly trenched channel accelerated tunneling electron (DPT