The Peseux 143 watch movement features an indirectly driven minute system that enables the incorporation of a large balance and ensures a low-profile design. It offers the Triostat regulator option, which includes three adjustable features: precision adjustment for speed, regulator pin-width adjustment, and a mobile stud carrier. The differences between the Peseux 143 and 2372 movements are unknown. The Peseux 143 movement functions include manual winding and a sweep seconds function.