Patent ID: 7436737

Claim:
An electric timepiece comprising: a transmitting circuit for generating a plurality of transmitted signals; a transmitting electrode for applying output signal from said transmitting circuit; one receiving electrode for receiving signal output from said transmitting electrode; a rotor, provided between said transmitting electrode and said receiving electrode, for modulating said transmitted signal output from said transmitting electrode; a receiving circuit for inputting a modulated signal received by said receiving electrode; a reference signal generating circuit for generating a reference signal for detecting position information of said rotor based on said transmitted signals output from said transmitting circuit; and a detecting circuit for comparing a phase of an output signal of said receiving circuit with a phase of said reference signal from said reference signal generating circuit so as to detect mechanical position information of said rotor, wherein said rotor is a wheel driven by a rotation movement transmitted by a wheel train from an electromechanical transducer to a rotating member to be measured having a hand display function, a wheel driven by a rotation movement transmitted by a wheel train from an electromechanical transducer to a rotating member to be measured having a date display function or a date indicator, and said detecting circuit detects a reference position of said rotating member to be measured based on said mechanical position information of said rotor.