| 摘要 |
PROBLEM TO BE SOLVED: To invariably display the power generation state and electricity storage state by forming an opening section on the dial of a wrist watch, and displaying the power generation state or electric capacity on the opening section with characters or colors. SOLUTION: A watch case 11 is provided with a dial 13, a solar battery 14, a color filter plate 15 showing an electricity storage quantity, a day plate 16 showing a day, a circuit section 17, and a secondary battery 18 storing the generated electricity from the side of a windshield glass 12. The dial 13 is provided with a dial opening section 22 showing the day of the day plate 16 and the opening section 23 of the solar battery 14, and the color filter plate 15 showing the charge storage quantity of the secondary battery 18 is arranged on the day plate 16. The color filter plate 15 displays the reduction and exhaustion of the stored charges in yellow and in red respectively. The information of the color filter plate 15 and the information of the day plate 16 can be observed through the dial opening section 22 and solar battery opening section 23. When the stored charges are exhausted, for example, a red color filter is arranged above a day number in the solar battery opening section 23. A stop of the watch or a delay of time can be recognized. |
