Authentic IWC Portugieser men's watch model IW503312. Features an automatic movement, perpetual calendar complication, moonphase display, day of the week indication, date function across sub-dials on a blue dial with polished rose gold tone hands and markers featuring Arabic numerals including minute markers around outer rim. Rose gold tone 18K brushed and polished case paired with genuine alligator leather strap secured by folding clasp. Smooth bezel, sapphire crystal glass (scratch resistant), screw-down crown. Unique shaped case measuring 44.2mm in diameter and 14.9mm thick with transparent case back. Water resistant to 30 meters / 100 feet depth. Includes IWC Calibre 52611 engine, approximately 168 hours power reserve capability, and comes with a 2-year WatchMaxx warranty.