This Sort of structure has an extended background at Patek, courting back again into the early sixties Together with the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Hands-On With all the 5164R in 2019, the motion inside the 2597 originated through the mind of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/