Such A style and design has a lengthy heritage at Patek, courting back to the early sixties While using the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Palms-On Along with the 5164R in 2019, the movement in the 2597 originated with the mind of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/