In the Patravi TravelTec GMT, Carl F. Bucherer has developed a big, bold timepiece that stands head and shoulders above other time zone watches thanks to its highly functional value and sophisticated func-tions. In addition to its practical chronograph, the exclusive CFB 1901 caliber is equipped with ingenious functions that allow three time zones to be displayed. The third time zone is set by means of a new single push-button mechanism for which the patent is pending.