Patent ID: 7701806

Claim:
An electronic wristwatch with wireless capability, comprising: a cylindrical outer case having a metal portion on at least an outer peripheral surface of the case and having first and second ends; a time display means having a hand and a dial disposed in the vicinity of the first end of the case, wherein the dial comprises a non-conductive and non-magnetic member; a front cover disposed in the vicinity of the first end of the case, wherein the front cover comprises a non-conductive and non-magnetic member; a movement having components including a drive unit for driving the hand; a main plate comprising a non-conductive and non-magnetic member and on which the components of the movement are substantially mounted, the main plate having a hole formed therein, the hole having two openings, one opening toward the first end of the case and the other opening toward the second end of the case, such that the hole passes through the main plate, the main plate further being formed with one or more recesses on at least the metal-back-cover side of the main plate, the one or more recesses being connected to the hole, formed so as to not pass through the main plate; an antenna comprising a coil and a core around which the coil is wound, the antenna being configured to receive radio signals, wherein at least a portion of the coil is positioned in the hole and at least a portion of the antenna extends into the one or more recesses on the metal-back-cover side of the main plate; and a metal back cover disposed in the vicinity of the second end of the case.