The Ultra 41 watch movement, manufactured from 1972 onwards, features a pin-lever escapement with two ruby pins, two lever bearings, two escape-wheel bearings, and one 4th-wheel bearing, resulting in a total of seven jewels excluding balance jewels. It operates with an indirect second and minute mechanism and includes a ratchet on the dial side, as well as a crown mechanism with a rocker bar. The movement is manually wound and incorporates a sweep second hand. Additionally, it offers a date function that can be set by adjusting the time between 21:30 and 24h. The movement is identified solely by the signature 060a1.