Since 2011 Patek has put its travel time function in several watches including the mega Nautilus 5990 with a chronograph the ever-cool Calatrava Pilot Travel Time ref. 5524 and 7234 the big-boy 5520P and even Smart Manufacturing Trends the 6300 Grandmaster Chime Disaster Proof Cooking this alongside Deutsche Rechtstech some 19 other complications.