The Bettlach 8481-74 watch movement, manufactured from 1953 to 1960, features an intermediate wheel between the minute pinion and the rest of the train, enabling a larger balance and a low profile while maintaining durability. This design also allows for the placement of the seconds wheel either in the center or as a sub-second indication, without requiring additional modifications. In terms of functions, the movement offers manual winding, a sub-second display, and a date complication that can be adjusted by changing the time between 20:45 and 24 hours.