Laminated base element for a wristwatch using hot melt adhesive
Lamp and alarm clock with gradually increasing light or sounds
Lap timer
Large clock driven by solar cell
Large date calendar day mechanism for a timepiece
Large date display device
Laser beam projection survey apparatus with automatic grade corr
Laser clock
Laser pointer with built-in accessories
Last minute graphics for balanced digital time displays
Leak resistant watch casing having annular elastic element surro
Leakproof watch case
Leap year compensation circuit
Leap-second cure for 1999 GPS rollover problem
Learning security control device
Leather watchcase and method of manufacture thereof
LED Digital watch with user control of display timing and bright
Lenticular optical system
Lever escapement for a timepiece
Lever escapement for a timepiece