This Type of design has a long history at Patek, courting back again towards the early nineteen sixties Using the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Arms-On Using the 5164R in 2019, the movement within the 2597 originated in the thoughts of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/