| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio wave wristwatch that neither deteriorates (decreases) in receiver sensitivity of an antenna contained therein nor increases in size even when the main case and the back cover are made of metal. <P>SOLUTION: The radio wave wristwatch includes: a main case 10 made of metal; a watch module 50 disposed in the main case 10, a frame member 60 made of synthetic resin and supporting the watch module 50; and a back cover 20 made of metal and attached to a back side of the main case 10. The frame member 60 is formed by a circular bottom portion 62 and a side portion 64 extending along the periphery of the bottom portion. The side portion 64 has a notched portion opposed to an antenna 52 contained in the watch module 50. In the notched portion, a magnetic sheet 70A corresponding in shape and thickness to the notched portion is disposed so as to constitute a part of the side portion 64. <P>COPYRIGHT: (C)2009,JPO&INPIT |
