In production from circa 1996 to 2005, the IWC Pilot’s Watch Doppelchronograph ref. 3713 is the second of IWC’s pilot’s watches to be fitted with a split-second chronograph. It was available in either stainless steel, yellow gold or platinum, with various dials, and with day-discs in different languages. The stainless steel version was available in a strap or bracelet; the platinum execution too had five pieces made on the bracelet. From 2003 onwards the 3713 was exclusively available with Spitfire-type dials.Reference IW3713-31 has a Stainless Steel case and a Black ‘Spitfire’ dial.
