Such A design has an extended history at Patek, dating back for the early 1960s Together with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Arms-On with the 5164R in 2019, the motion in the 2597 originated from the mind of Louis Cottier – The daddy https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/