| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wrist watch capable of enhancing designability even when a wide photoreception area is not provided in a solar cell, and having durability enough for practical use. <P>SOLUTION: This wrist watch includes a memory type display panel 71 for holding a display condition after a display updating operation just before, and a solar panel 70 for supplying operation electric power to the memory type display panel 71 at least in the display updating operation, and a dial or a display panel is constituted of the memory type display panel 71 and the solar panel 70. <P>COPYRIGHT: (C)2008,JPO&INPIT |
