Electronic wristwatch with generator

Electronically controlled mechanical timepiece

Electronically controlled mechanical timepiece and method...

Electronically controlled mechanical watch and method of...

Electronically controlled timepiece, and power supply...

Horological piece comprising a photovoltaic cell having a photel

Low-power integrated circuit for an electronic timepiece

Method and apparatus for controlling a solar-powered...

Overcharge prevention method, changing circuit, electronic...

Photovoltaic electronic timepiece

Portable electronic device

Portable electronic device and control method for...

Portable wrist device

Power circuit for an electronic timepiece

Power circuit for electronic wristwatch

Power feeding apparatus, power receiving apparatus, power...

Power generating type electronic timepiece

Power line-operated electronic time-clock

Power source control circuit for an analog electronic timepiece

Power supplies for electronic device