This Kind of design and style has an extended heritage at Patek, courting back on the early 1960s Using the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Palms-On with the 5164R in 2019, the motion within the 2597 originated from your brain of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/