In 1993, IWC released the Ref. 3711, which came before the more popular 3713. This was the first pilot's watch from IWC to feature a split-second chronograph function. The main difference between the 3711 and 3713 is the curved glass on the former. The 3711 came in stainless steel, yellow gold, and platinum options. It also offered various day wheel languages and color combinations, such as a German day wheel with a black or brown alligator strap, or a French day wheel with a white or blue dial. There were also options for a bracelet instead of a leather strap.