An electronic device such as a watch comprises a solar cell (14) and window portions (2, 6) which is located on the solar cell (14) and through which light is applied to the solar cell (14). The solar cell (14) is divided into a plurality of divided cells such that irradiated portions (14A to 14F) of...http://www.google.fr/patents/US7746731?utm_source=gb-gplus-shareBrevet US7746731 - Electronic device with solar cell