Patek Philippe 39mm Calatrava Watch Black Dial 5227G

39mm 18K white gold case, sapphire-crystal back protected by a hinged dust cover, black lacquered dial with gold applied hour markers, caliber 324 S C self-winding movement with date in an aperture and center sweep second hand, approximately 35-45 hours of power reserve, shiny black alligator strap with square scales, prong buckle. Water resistant to 30 m.