Brand new authentic IWC Portugieser perpetual calendar automatic luxury watch model IW503701. Features an 18K rose gold brushed and polished case with a silver white dial, polished rose gold tone hands, Arabic numeral hour markers, minute markers around the outer rim, and four sub-dials displaying day, date, moon phase, power reserve, and seconds. Equipped with a brown alligator leather strap secured by a folding clasp. Powered by IWC's Calibre 52616 automatic movement offering perpetual calendar functionality, moon phase indication, central second hand, power reserve display indicating approximately 7 days duration (based on full power), date function, day of the week display, and fixed water resistance rating at 50 meters/165 feet with a standard 2-year WatchMaxx warranty. Round case shape.