| 摘要 |
A self-winding electric power generation watch capable of having an additional function structure besides a time indication and an electric power generation function by virtue of an efficient arrangement of train wheels and motors for watch, electric power generation, and additional function in a watch case. An electric power generation motor 12 for conducting self-winding electric power generation by means of rotation of a rotary weight 41a, a watch motor 11 driven by electric power of the electric power generation motor 12, a storage battery 14 for storing the electric power of the electric power generation motor 12, and a chronograph motor 13 driven by the electric power of the electric power generation motor 12 are arranged in a watch case so as to surround a center part of the watch. Watch train wheels 20 and 30, an electric power generation train wheel 40, and a chronograph train wheel 50 are disposed in a two-layer form in a region surrounded by the motors.
|
