This Sort of design has a long heritage at Patek, dating back again for the early nineteen sixties with the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Fingers-On While using the 5164R in 2019, the movement from the 2597 originated through the intellect of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/