The Longines 351 watch movement, introduced in 1967, features a micro rotor and a double excenter regulator for curb pins and stud carrier. It incorporates a self-winding gear with direction switching facilitated by a pinion floating between two large jewels. This movement allows for a low-profile design due to the indirectly driven minute hand. Additionally, the Longines 351 movement offers several functions, including automatic winding and a date display that can be adjusted by changing the time between 22-24 hours.