Hamilton Khaki Aviation Pilot Pioneer Chronograph Quartz H76522531 100M Men's Watch With its base in 1970s military aviation design, the Khaki Pilot Pioneer range is inspired by tradition but powered by innovation. A thoroughly modern, accurate movement ensures the Khaki Pilot Pioneer Chrono Quartz lives up to the reliability its military aviation roots promise. Hamilton's prestigious history of serving the flying community means our collection represents developments in aviation watchmaking over time. The Khaki Pilot Pioneer range is a nod to 70s military aviation design but relies on modern technology to make it tick. The Auto Chrono is powered by the latest H-31 chronograph movement, with a power reserve of up to 60 hours. Modern materials meet tried and tested design for an impressive display.