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 zones that are both highly legible and easy to use.
Mechanical self-winding movement. Caliber 324 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. Center sweep second hand. Dial: blue varnished, gold applied numerals with luminescent coating. Calf leather strap, Vintage brown, clevis prong buckle. Clevis prong buckle. Case: white gold. Sapphire-crystal case back. Water resistant to 60 m. Case diameter: 42 mm. Height: 10.78 mm.