A stepping motor includes a rotor including a cylindrical permanent magnet, ring-shaped first and second yoke units that are arranged so as to be mutually stacked along an axis of the rotor, electrical connection members of resin material that include external connection terminals and are respectively secured to the first and second yoke units, and a pair of lid members. Each of the first and second yoke units includes a ring-shaped air-core coil, an outer yoke that accommodates therein the air-core coil and includes magnetic pole teeth arranged at fixed intervals in a circumferential direction of the air-core coil, and an inner yoke that includes a plurality of magnetic pole teeth arranged at fixed intervals in a circumferential direction of the air-core coil, and is combined with the outer yoke. Winding ends of the air-core coil are electrically connected to the external connection terminals.