The Fontainemelon 281-3 watch movement, introduced in 1959, features an excenter regulator for stud carrier. It includes an intermediate wheel positioned between the minute pinion and the rest of the train, enabling a large balance and low profile while maintaining durability. This arrangement offers the flexibility to position the seconds wheel either in the center or as a sub-second without requiring additional modifications. The movement is manually wound and incorporates a sweep second function.