This Sort of design has a lengthy heritage at Patek, dating back to your early sixties Together with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Arms-On While using the 5164R in 2019, the movement while in the 2597 originated in the mind of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/