This is an authentic IWC Stainless Steel Alligator 42mm Portofino Chronograph Automatic Watch IW391027. The watch is crafted of stainless steel and features a silver dial with three sub dials, date indicator, sapphire crystal, brown alligator strap, sapphire crystal, and an automatic movement. Follow this item for alerts. IWC is a registered trademark of IWC. FASHIONPHILE is not affiliated with IWC.