This Sort of style has an extended history at Patek, dating again on the early 1960s With all the ref. 2597 Travel Time Calatrava. As James Stacey stated in his Palms-On With all the 5164R in 2019, the movement in the 2597 originated from the intellect of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/