An electric watch is characterized by including a transmitting circuit 6 for generating a plurality of transmitted signals, transmitting electrodes 1 and 2 for outputting the output signals generated by the transmitting circuit 6, a signal modulating member 3 composed of a rotor arranged adjacently to the transmitting electrodes 1 and 2 in a non-contact manner for modulating the transmitted signals, a receiving electrode 4 arranged adjacently to the signal modulating member 3 in a non-contact manner for receiving the transmitted signals modulated by the signal modulating member 3, a receiving circuit 7 for amplifying received signals received by the receiving electrode 4, and a detecting circuit 8 for detecting mechanical position information of the signal modulating member 3 based on the received signal amplified by the receiving circuit 7.