Patek Philippe Annual Calendar Chronograph Complications Watch - 5905P-010

42 mm platinum case, sapphire-crystal back, ebony black sunburst dial with gold applied hour markers, caliber CH 28-520 QA 24H self-winding movement with Annual Calendar and Chronograph (sweep seconds hand (chronograph hand) and 60-minute counter, day, date, month in apertures, day/night indication), approximately 45-55 hours of power reserve, matt black alligator strap with square scales, prong buckle. Water resistant to 30 m.