This Sort of design and style has a lengthy history at Patek, courting back to the early sixties with the ref. 2597 Travel Time Calatrava. As James Stacey stated in his Palms-On With all the 5164R in 2019, the movement during the 2597 originated with the brain of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/