This Kind of design has a long record at Patek, relationship back again into the early 1960s with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Hands-On Along with the 5164R in 2019, the movement inside the 2597 originated with the thoughts of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/