The IWC Pilot's Watch Doppelchronograph ref. 3713 was in production from 1996 to 2005. It was the second pilot's watch from IWC to have a split-second chronograph. You could get it in stainless steel, yellow gold, or platinum, with different dials and language options for the day display. The stainless steel version had the choice of a strap or bracelet, while only five platinum versions were made with a bracelet. From 2003, the 3713 exclusively came with a Spitfire-style dial. The reference IW3713-34 has a Stainless Steel case and a Black 'Spitfire' dial.