Patek Philippe Complications Chronograph Annual Calendar 5961R-010 self-winding mechanical watch features a 40.5mm 18k rose gold case with a baguette diamond bezel surrounding an ebony black opaline dial with diamond hour markers on a matte black alligator strap with a 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.