Such A design has a long history at Patek, relationship back for the early nineteen sixties Using the ref. 2597 Travel Time Calatrava. As James Stacey talked about in his Arms-On Along with the 5164R in 2019, the motion during the 2597 originated through the head of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/