Such A style and design has a lengthy record at Patek, relationship again into the early 1960s Using the ref. 2597 Travel Time Calatrava. As James Stacey pointed out in his Fingers-On with the 5164R in 2019, the motion inside the 2597 originated in the head of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/