To provide a watch equipped with an oilless stepper motor, whose abrasion generated in the shaft support part of a rotor is reduced thanks to an oilless structure, in which characteristics such as power consumption, a reserve capacity or the like can be maintained over a long period, in a state with its being close to an initial value and which is superior in durability and reliability.

The ratio of distance up to the central position of a first shaft support part from the central position in the thickness direction of the magnet thickness of a rotor magnet to a distance up to the central position of a second shaft support part from the central position in the thickness direction of the magnet thickness of the rotor magnet is set at a value of 0.8 to 1.2, and a solid lubricating film is formed, on at least one from among both the first shaft support part in a first shaft support hole and the second shaft support part in a second shaft support hole and both the first shaft support part of a rotor shaft and the second shaft support part of the rotor shaft.