IWC Portofino Chronograph Watch - 42.0 mm Stainless Steel Case - Silver Dial - Dark Brown Alligator Strap - IW391027 Openworked calibre 507 DR1 manual winding

calibre 507 DR1 manual winding movement

skeleton dial with blue subdial

silvered and multi-patterened engine-turned dial with Roman numerals hours chapter on a sapphire disc

black crocodile hand-stitched large square scale alligator strap

IWC Portofino Chronograph Watch - 42.0 mm Stainless Steel Case - Silver Dial - Dark Brown Alligator Strap - IW391027 Openworked calibre 507 DR1 manual winding42. 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, dark brown alligator leather strap. Water resistant to 3 bar.