Such A design has an extended background at Patek, dating again towards the early 1960s While using the ref. 2597 Travel Time Calatrava. As James Stacey pointed out in his Hands-On While using the 5164R in 2019, the movement in the 2597 originated in the brain of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/