Brand New Authentic IWC Portofino Chronograph 39 Automatic White Dial Steel Men's Fashion Watch Model IW391503. Polished Stainless Steel case with Brushed and Polished Stainless Steel Bracelet watch band. Polished Stainless Steel Deployment with Push Button clasp. Smooth bezel. Dial description: Polished Silver Tone Hands and Stick/Roman Numeral Hour Markers with Minute Markers Around the Outer Rim and 2 Sub-dials on a Silver Plated dial. Swiss Automatic. Chronograph movement. Chronograph sub-dials display: Seconds, 30 Minute. Powered by Calibre 69355 engine with 46 hours power reserve. Watch functions: Hour, Minute, Second, Power Reserve, Chronograph. Push-Pull crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 39mm. Case thickness: 13mm. Transparent case back. 50 Meters - 165 Feet water resistant. 2-year WatchMaxx warranty. Also known as model: 391503.