High technology for the sophisticated aviator. Thanks to the bidirectional rotating bezel with slide rule, the Khaki Pilot Converter Auto Chrono allows you to make complicated conversions and measurements in a snap. This high-performance tool converts various currencies and units, such as feet to meters or miles to kilometers. With the addition of the H-21-S automatic chronograph movement featuring an incredible anti-magnetic silicon hairspring, this elegant 44mm pilot's watch is perfect for your next high-altitude adventure. Automatic winding, chronograph, day and date function, 60-hour extended power reserve, silicon balance spring, certified chronometer.