| 摘要 |
A time measurement system includes a master timepiece and a slave timepiece 3. The master timepiece includes a time signal generating circuit that receives a standard frequency and time signal and generates a time signal being receivable by a motor driving coil 35 of the slave timepiece 3; and a transmitter circuit and a coil that transmit this signal. The slave timepiece 3 includes a time counter 33 that keeps time on the basis of a reference signal; a driving motor with the driving coil 35; a receiver circuit 37 that receives the time signal using the driving coil 35; a control circuit 38 that corrects the time counter 33 on the basis of the received time signal; and a time display unit 36 that displays time. Since the driving coil 35 is used, increases in the number of components and cost are suppressed. The time can be adjusted within a short period of time. Waterproof abilities are improved. |
