Hatch locking mechanism for the battery compartment of a wristwa
Heads up sports timer with electronic time display
Health watch
Health watch
Heavy-load drive apparatus for an electronic watch
Heliochron
Hexidecimal clock, and methods of constructing and utilizing sam
Hidden message indicator
High accuracy timepiece
High accuracy timepiece
High frequency signal measurement method and apparatus
High illumination alarm clock
High precision delay measurement circuit
High precision radio signal controlled continuously updated digi
High rate, bidirectional drive for a bipole stepping motor watch
High resolution and high accuracy time interval generator
High resolution data acquisition
High resolution time interpolator
High resolution time interpolator
High resolution timer using low resolution counter