Small radio-controlled clock with an antenna coil

摘要

A small radio clock (11), in particular one that can be configured as a wrist watch, is to be equipped, despite the unfavourable spatial conditions, with a receiver antenna (15) of sufficient power. For this purpose, the antenna coil (17) is arranged in the region of at least one side wall of the wrist-watch casing (14), preferably penetrated by an antenna-rod core (16) in the form of a moulding or casting of plastic having embedded ferrite or soft magnetic particles. The core (16) can be constructed as a U- or O-shaped part of the watch casing (14) and accommodate the watch (13) in its interior (20).