Such A design has a long heritage at Patek, courting again towards the early nineteen sixties Using the ref. 2597 Travel Time Calatrava. As James Stacey pointed out in his Hands-On While using the 5164R in 2019, the motion from the 2597 originated from the brain of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/