This Type of design and style has a lengthy record at Patek, relationship back to the early sixties with the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Palms-On with the 5164R in 2019, the motion within the 2597 originated in the thoughts of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/