Analog electric timepiece
Automatic circuit and method for temperature compensation of...
Automatic circuit and method for temperature compensation of...
Circuit and method for correcting the rate of an electronic time
Clock or watch having accuracy-improving function
Electronic timekeeping apparatus with temperature compensation a
Electronic timepiece
Electronic timepiece
Electronic timepiece
Electronic timepiece
Electronic timepiece with gain/loss adjustment
Elimination of magnetic influence on atomic clocks
Linearizer circuit and an electronic watch incorporating same
Low power, cost effective, temperature compensated real time...
Low power, cost effective, temperature compensated, real time cl
Method and apparatus for adjusting the accuracy of electronic ti
Method and apparatus for measuring cumulative time
Quartz oscillation-type electronic timepiece
Resonator temperature compensated time base and watch using said
Self-correcting watch