This Type of design has an extended historical past at Patek, courting back into the early sixties Together with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Fingers-On With all the 5164R in 2019, the movement in the 2597 originated from the head of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/