Such A design has an extended heritage at Patek, courting back to the early nineteen sixties Using the ref. 2597 Travel Time Calatrava. As James Stacey talked about in his Arms-On Together with the 5164R in 2019, the motion inside the 2597 originated with the brain of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/