Brand New Authentic IWC Portofino Hand Wound Eight Days Blue Dial Leather Strap Men's Watch Model IW510106. Stainless Steel case with Black Alligator Leather strap. Tang clasp. Fixed bezel. Blue dial. Automatic Self Winding 8-Day Power Reserve movement. Push Down crown. Scratch Resistant Sapphire crystal. Case size: 45mm. Case thickness: 12mm. Transparent case back. 30 Meters - 100 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: IW5101-06, 5101-06, 510106, IW5101.06.