IWC, Schaffhausen, Big Pilot, "First Generation", ca 2002. Case size: 46 mm Material: steel Movement: automatic, caliber 5011 Year: circa 2002 Crystal: sapphire crystal Bracelet: leather strap, folding clasp Reference number: IW500201 Movement number: 2'877'295 Case number: 2'885'837 / 5002 Watches have been opened to examine movements therefore no warranties are made that the watches are water-resistant. Potential buyers should inspect each watch to satisfy themselves as to condition. For more information, please read our Conditions of Purchase.