This Kind of structure has a protracted record at Patek, courting again into the early sixties While using the ref. 2597 Travel Time Calatrava. As James Stacey talked about in his Arms-On While using the 5164R in 2019, the motion from the 2597 originated from the mind of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/