Patek Philippe Grand Complications Perpetual Calendar Chronograph 5270/1R-001 manual winding mechanical watch features a 41mm 18k rose gold case surrounding a black dial on an 18k rose gold braclet with a deployant buckle. Functions include hours, minutes, seconds, perpetual calendar with day, date, month; day/night indicator, leap year indicator, and chronograph. This watch is powered by the Manufacture Movement Caliber CH 29‑535 PS Q. This watch is water-resistant to 30m. This watch comes with interchangeable solid and sapphire casebacks.