IWC Portofino Chronograph Watch - Stainless Steel Case - Silver-Plated Dial - Blue Alligator Leather Strap - IW391037 IW390704 silk-embossed blue dial with date

silk-embossed blue dial with date at 6 oclock

Caliber Omega 9904 self-winding movement with chronograph

blue Jubilee dial

three subdials and a date window at 6 o'clock

The 40mm Oyster case

IWC Portofino Chronograph Watch - Stainless Steel Case - Silver-Plated Dial - Blue Alligator Leather Strap - IW391037 IW390704 silk-embossed blue dial with date42. 0 mm stainless steel case, 13. 6 mm thick, convex sapphire glass crystal with antireflective coating on both sides, silver plated dial, calibre 75320 automatic movement with date, day, chronograph, hours, minutes, small seconds, approximately 44 hours of power reserve, blue alligator leather strap. Water resistant to 3 bar.