This Type of style and design has an extended heritage at Patek, dating back again on the early 1960s with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Fingers-On with the 5164R in 2019, the movement from the 2597 originated in the head of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/