The IWC Pilot's Watch Chronograph ref. 3706 was produced from 1994 to 2005 and has become a true icon in the world of luxury watches. Throughout its production, three different versions of the Valjoux 7750-based caliber were used: caliber 7902 (1994-1998), caliber 7912 (1998), and caliber 7922 (1999-2005). The standard versions are available in five different references, each featuring a matte black crocodile strap with a day wheel in German, Italian, English, French, or Spanish. Alternatively, there are also five references with a stainless steel bracelet and the same language options for the day wheel. The alligator strap has three