IWC - Aquatimer Perpetual Calendar Digital Date-Month Watch IW379401

49 mm 18K red gold case with rubber-coated titanium, 19 mm thick, sapphire back, screw-in crown, rotating bezel with safeDive system, convex sapphire crystal with antireflective coating on both sides, black dial with large double-digit displays for both the date and month, calibre 89801 self-winding movement with leap year display, approximately 68 hours of power reserve, black rubber strap, pin buckle. Water resistant to 10 bar.