Patent ID: 7760588

Claim:
A radio controlled time piece comprising: a receiving means for receiving a standard radio wave signal including a standard time information signal; a timekeeping means for keeping time or calendar information; a display means; a control means for controlling a drive condition of said timekeeping means; an external input means; and a control information storage means, wherein: said receiving means can receive a plurality of types of standard radio wave signals, said radio controlled timepiece performs a time-programmed receiving operation that starts automatically a receiving operation by the receiving means when said timekeeping means reaches a predetermined time information value, and a forced receiving operation that starts the receiving operation by the receiving means when said external input means is operated by a user, and corrects the time or calendar information of the timekeeping means based on time or calendar information acquired from a selected standard radio wave signal when succeeding in receiving the selected standard radio wave signal in the time-programmed receiving operation or in the forced receiving operation, wherein in the time-programmed receiving operation and in the forced receiving operation, said receiving means receives more types of standard radio wave signals in said forced receiving operation than in said time-programmed receiving operation, whereby when an attempt to receive the selected standard radio wave signal in the forced receiving operation is unsuccessful, said receiving means continues to receive the next selected standard radio wave signal unless all the standard radio wave signals have been received, and when an attempt to receive the selected standard radio wave signal in the time-programmed receiving operation is unsuccessful, said receiving means stops the receiving operation.