This Type of structure has an extended record at Patek, relationship again for the early nineteen sixties With all the ref. 2597 Travel Time Calatrava. As James Stacey pointed out in his Hands-On with the 5164R in 2019, the motion in the 2597 originated in the head of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/