Ironman® 8-Lap Gray Shades TW5M54500The world first sport oriented watch, the Ironman Triathlon was debut in 1986 and this Gray Shade is limited to Japan. The original Ironman 8 Lap watch was sold more than 400,000 units in the first year, because of its philosophy and engineering background. Built for Triathlon (Swim, Bike and Run), the Ironman watch became an icon and even the President of the United States of America worn. John T. Houlihan, a former car designer at General Motors and