Electronic time piece with analogue read-out - has step motor driven by reference clock pulse for rotating indicating hands via gear train

摘要

The electronic time keeping device has a step motor (4) including a rotor (11), a stator (8), and winding (10) provided in unitary fashion by means of motor case plates (6,7). The hand (25) of the smallest unit of time (minutes hand) is mounted on the shaft (13) of the step motor (4) which is a 60 pole motor receiving one pulse per minute. The gear train (21,22,23,24) driving the hour hand (26), and the electronic parts are accommodated in a depressed portion (7a) of the upper plate (7). The electronic parts are on a circuit board (15). Stator teeth (8a,b) are formed integrally with the plates (6,7).