This Sort of style has an extended background at Patek, dating again for the early nineteen sixties with the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Palms-On Together with the 5164R in 2019, the movement from the 2597 originated with the intellect of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/