This Kind of design has an extended history at Patek, relationship again towards the early 1960s With all the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Arms-On with the 5164R in 2019, the motion while in the 2597 originated within the mind of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/