This is an authentic IWC Stainless Steel Alligator 41mm Portugieser Chronograph 150 Years Automatic Watch Blue IW371601. The timepiece is crafted of stainless steel and features a navy dial with a chronograph function with minutes and seconds, white Arabic hour markers, sapphire crystal, a black alligator strap and an automatic movement. Follow this item for alerts. IWC is a registered trademark of IWC. FASHIONPHILE is not affiliated with IWC.