| 摘要 |
<p>To be able to downsize an electronic apparatus having an antenna having a plurality of antenna coils. A radio wave timepiece includes an antenna for receiving a radio wave signal including time information and the antenna is provided not to be projected from a contour of a timepiece movement. The antenna includes a plurality of antenna coils wound to laminate on a core, when the antenna (101) is used by being contained in a metal cabinet, the antenna coil (102) wound around an upper layer and having a large inductance value is used, when the antenna is used by being contained in a plastic cabinet, the antenna coil (103) wound around a lower layer and having a small inductance value is used, thereby, regardless of a kind of the cabinet, the radio wave timepiece can be downsized and a predetermined radio wave receiving sensitivity can be achieved.</p> |
