This Kind of design has a protracted history at Patek, dating back to your early sixties While using the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Arms-On While using the 5164R in 2019, the movement within the 2597 originated from the mind of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/