The Certina 28-351 watch movement, which is also occasionally found under the name Dugena 4200 for early samples, was introduced in the year 1975. It incorporates an electronically controlled balance motor, providing accurate timekeeping. The movement includes a sweep second hand and features a quickset function for the date display. Moreover, it is equipped with a hack feature, which allows for both mechanical and electrical stopping of the movement. The Certina 28-351 movement has been utilized in watches since its introduction in 1975.