MECHANICAL TIMEPIECE WITH POSTURE DETECTOR

In a mechanical timepiece of the present invention, a movement 500 includes a barrel complete 120, a center wheel and pinion 124, a third wheel and pinion 126, a fourth wheel and pinion 128, a balance with hairspring 140, an escape wheel and pinion 130 and a pallet fork 142. A coil 180 is attached on a front surface of a main plate 102 in a manner facing a surface of a balance wheel 140b close to the main plate. A balance magnet 140e is attached on a surface of the balance wheel 140b close to the main plate in a manner facing a front surface of the main plate 102. A gap between the balance magnet 140e and the coil 180 is determined such that a magnetic flux of the balance magnet 140e has an effect upon the coil when the coil 180 is energized. A position-detecting device 510 and circuit block 520 is arranged on a front surface side of the main plate 102. The position-detecting device 510 is attached on the circuit block 520. [0002] The mechanical timepiece of the invention is structured to control the operation of the balance with hairspring 140 based on a result of detection of a position of the mechanical timepiece detected by the position-detecting device 510.