The IWC Pilot's Watch Doppelchronograph ref. 3713 was made from 1996 to 2005 and was the second pilot's watch from IWC to feature a split-second chronograph. It came in stainless steel, yellow gold, or platinum with different dial options and language options for the day display. The stainless steel version could be worn on a strap or bracelet, while there were only five platinum versions made with a bracelet. After 2003, the 3713 was only available with Spitfire-style dials. The IW3713-36 model has a stainless steel case and a black 'Spitfire' dial.