Such A layout has an extended record at Patek, relationship again to your early nineteen sixties With all the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Hands-On Along with the 5164R in 2019, the movement within the 2597 originated from the mind of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/