This Type of layout has a lengthy record at Patek, relationship again into the early sixties With all the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Palms-On With all the 5164R in 2019, the motion during the 2597 originated from the intellect of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/