Such A design has an extended background at Patek, dating back to your early nineteen sixties Together with the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Palms-On Together with the 5164R in 2019, the motion in the 2597 originated within the mind of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/