Patent ID: 7113452
Filing Date: 2006-09-26
Classification: G04C

Abstract:
1. An electronic watch provided with an electricity generating unit that generates the electric power required to drive the electronic watch, the electronic watch comprising: an external operating member; an operation detecting unit which outputs an operation signal when the external operating member is operated; an electricity-generation detecting unit which outputs an electricity-generation detecting signal when it is detected that the electricity generating unit is generating electricity; an informing unit which informs outside of an electricity generation state of the electricity generating unit in accordance with the electricity-generation detecting signal only during a predetermined clocking time which is started based on the operation signal; at least an hour hand and a minute hand; a hand rotating unit which rotates the hour and minute hands of the electronic watch; and a waveform shaping unit which forms a driving pulse for carrying out a clocking operation, wherein the informing unit changes a driving mode of the hand rotating unit based on the operation signal, the electricity-generation detecting signal, and the driving pulse, wherein the driving mode is changed to a non-driving state from a driving state by providing a plurality of narrow pulsewidth signals to the hand rotating unit the narrow pulsewidth signals having a narrower pulsewidth than the driving pulse.