Patek Philippe Complications Chronograph Annual Calendar 5961P-001 self-winding mechanical watch features a 40.5mm platinum case with a baguette diamond bezel surrounding a matte blue opaline dial with diamond hour markers on a navy blue alligator strap with a platinum folding buckle. Functions include hours, minutes, annual calendar with day, date, month, flyback chronograph, and  power reserve indicator. This watch is powered by the mechanical movement Caliber CH 28‑520 IRM QA 24H. This watch is water-resistant to 30m.