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