Hamilton Watch Khaki Aviation Pilot Pioneer Chrono Quartz H76522131. The Khaki Pilot Pioneer Chrono Quartz is inspired by the traditional military aviation watches from the 70s, specifically the model that Hamilton designed for the Royal Air Force. The Superluminova hands make the dial on the Pilot Pioneer perfectly readable and both the Nato and leather strap are reminiscent of the military roots of the Pilot Pioneers ancestor. The two asymmetric counters and case propel the watch in the modern time.