The numerous and extremely useful additional functions on the Patravi Chronograde model make it a mechanical masterpiece. Equipped with chronograph, flyback function, big date, annual calendar, power reserve display, as well as the crowning touch of a retrograde hours indicator, this watch represents the ultimate expression of horological perfection. In other words, time will have no secrets for the person who chooses to wear the Patravi Chronograde by Carl f. Bucherer.