Patek Philippe Complications World Time 5230P-001 self-winding mechanical watch features a 38.5mm platinum case surrounding a blue guilloched dial on a blue calfskin leather strap with a platinum folding buckle. Functions include hours, minutes, world time with 24-hour and day/night indication for all 24 time zones. This watch is powered by the Manufacture Movement Caliber 26‑330 S C. This watch is water-resistant to 30m.