In 1884, the International Meridian Conference in Washington, D.C. established the system of standard time and the division of the globe into 24 time zones. And ever since, Patek Philippe’s engineers and watchmakers have been using their ingenuity to produce watches with multiple time z ones that are both highly legible and easy to use. 

Self-winding mechanical movement. Caliber 26‑330 S C FUS. Calatrava Pilot Travel Time. Dual time zone mechanism indicating local and home time. Local and home day/night indication in apertures. Local date by hand. Sweep seconds hand.

 This watch comes as a Full Set (Box & Papers).