IWC Portugieser Chronograph Watch - 41.0 mm 5N Gold Case - Slate Dial - Black Alligator Strap - IW371610

41.0 mm 18K 5N gold case, 13.0 mm thick, see-through sapphire glass back, convex sapphire glass crystal with antireflective coating on both sides, slate-coloured dial, calibre 69355 automatic movement with chronograph, column wheel, hours, minutes, small seconds, approximately 46 hours of power reserve, black alligator leather strap by santoni. Water resistant to 3 bar.