The Certina 17-35 watch movement, produced from 1962 onwards, features a micro rotor and a double excenter regulator for curb pins and stud carrier. Its self-winding gear incorporates a pinion floating between two large jewels to facilitate a direction-switching mechanism. An indirectly driven minute hand design contributes to a low profile. The base plate has undergone minor modifications since 1966/67, along with a simplified date driver. The movement offers the following functions: automatic winding, date setting by changing 23-24 hours (since ca. 1966/67, changing 22-24 hours), automatic sweep seconds, and the ability to display time accurately.