The IWC Pilot's Watch Doppelchronograph ref. 3713 was in production from about 1996 to 2005. This watch was the second pilot's watch from IWC to feature a split-second chronograph. It came in stainless steel, yellow gold, or platinum with various dial options and day discs in different languages. You could get the stainless steel version with either a strap or bracelet, while the platinum version only had five pieces made on a bracelet. Starting in 2003, the 3713 was only available with a Spitfire-style dial. Reference IW3713-16 is a Yellow Gold watch with a Black dial.