Patek Philippe Ref. 5520P Alarm Travel Time

Patek Philippe is unveiling a new self-winding grand complication that adds a 24-hour alarm to its exclusive Travel Time display with two time zones; the alarm signal is struck by a hammer on a classic gong. To achieve this, the manufacture created a totally new integrated movement. Four patent applications were filed for the alarm mechanism. It is the result of five years of development work. The new caliber is presented in an elegant platinum case that reflects the Pilot Travel Time design.