This Type of design has a lengthy background at Patek, courting back again for the early sixties with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Hands-On Along with the 5164R in 2019, the motion from the 2597 originated from the intellect of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/