| 摘要 |
There are provided a power-generation mechanism (2) having a rotary weight (21) and a generator for converting the mechanical energy by the rotation of the rotary weight (21) into electrical energy, a time-measuring mechanism for measuring time, and a receiving mechanism having an antenna (6) for receiving wireless information, and the antenna (6) is placed further towards the outside in the radial direction of the rotary weight (21) than the rotation path of the outer circumferential edge of the rotary weight (21). |
