A permanent magnet (17) of a meter portion (3) (FIG. 2A) has a disc shape having a hole formed in a center thereof, and is magnetized in an axial direction of a central shaft (18). In a bottom surface of the permanent magnet (17), magnetic domains are formed so that one side constitutes North pole and the other side constitutes South pole. Coils (15a, 15b) are wound on the same plane to form surfaces parallel to the bottom surface of the permanent magnet (17), and are arranged on one bottom surface side of the permanent magnet (17) at a predetermined distance from the permanent magnet (17). An outer spiral spring (11) and an inner spiral spring (12) are formed to be helical on the same plane. Each of those spiral springs is fixed to a bridge (42) at one end thereof and is fixed to a coil (15) at the other end thereof. The coil (15) is urged in a direction opposite to a direction in which an indicator needle (13) (which rotates about the central shaft (18) together with the coil (15)) swings.