Brand New Authentic IWC Ingenieur Chronograph Silberpfeil Men's Watch Model IW378505. Stainless Steel case with Brown Leather with Alligator Pattern strap. Silver dial. Automatic Self Winding movement. Scratch Resistant Sapphire crystal. Case thickness: 15mm. 120 Meters / 400 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: IW3785-05, 3785-05, 378505, IW3785.05.