IWC Portugieser Annual Calendar Watch - 44.2 mm Stainless Steel Case - Silver Dial - Black Alligator Strap - IW503501

44.2 mm stainless steel case, 15.3 mm thick, sapphire back, sapphire crystal with arched edge, antireflective coating on both sides, silver-plated dial, caliber 52850 pellaton automatic winding movement with power reserve display, annual calendar with displays for the date, day and month, small hacking seconds at 9 o’clock, approximately 7-day of power reserve, black alligator leather strap. Water resistant to 3 bar.