This Patek is 39 mm 18K rose gold case, sapphire-crystal back protected by a hinged dust cover, ivory 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 dark chestnut alligator strap with square scales, prong buckle. Water resistant to 30 m.