The Mido 001137O watch movement, introduced in 1962, features a micro rotor and is equipped with either 21 or 30 jewels, including a double jewel bearing. It incorporates a double excenter regulator for curb pins and stud carrier. The self-winding gear includes a pinion that floats between two sizeable jewels to facilitate direction switching. Notably, the indirectly driven minute hand design allows for a low-profile construction. Minor modifications to the base plate were implemented in 1966/67. This movement offers automatic winding functionality, utilizes Incabloc Shock Protection, and has been in use since 1962.