Ultra high resolution timing measurement
Ultra high-speed time-to-digital converter
Ultra-flat electronic watch
Ultra-flat self-winding watch
Ultradian timer
Ultrasonic motor for driving an analog electronic watch
Underwater electromechanical timer
Uni-directional rotation device for a cam-operated timer
Unidirectional correction arrangement for a time displaying devi
Unidirectional gear transmission
Unidirectional segmented digital time displays
Unified digital time displays
Unit that comprises a winding ratchet that is attached to a...
Unit time producing system
Unitary clock and picture frame
Universal clock having means for indicating zonal time in other
Universal digital time disk
Universal electronic device module configuration
Universal heliochronometer
Universal time clock