For over a century, Hamilton has served the aviation world: the brand was the guarantor in 1918 of the punctuality of the first airmail service in the United States and continues today to provide precision timepieces for the most daring adventures in the skies. The Khaki Aviation Converter allows modern aviators to perform complex calculations during flight. The distinguishing feature of this watch is the bi-directional rotating bezel with its logarithmic graduations which, combined with the fixed scale along the edge of the dial, creates a veritable slide rule that allows mathematical calculations to be made during flight. Basic information such as speed, distance, fuel consumption, rate of climb or descent and flight time can thus be obtained. In effect, it follows the same principles as the E6-B automatic slide rule, a flight computer still widely used today for pilot training. The slide rule bezel also allows various unit conversions - e.g. kilometres/nautical miles, pounds/kilograms, feet/metres - and currency conversions for those making international flights. Already distinguished by its excellent performance, the Khaki Aviation Converter takes a further step forward with the 42 mm automatic version. The watch is in fact equipped with a balance spring made of Nivachron alloy, an exclusive material that offers extraordinary resistance to magnetic fields. With an elegant black dial, this timepiece is powered by the H-10 automatic movement with an 80-hour power reserve and comes with either a brown leather strap or a steel bracelet. The Khaki Aviation Converter is also available in a GMT version with a 44 mm case, blue dial and brown leather strap or steel bracelet. Powered by the H-14 calibre with an 80-hour power reserve, it is the perfect watch for adventurers travelling the world. Finally, completing the collection is the Khaki Aviation Converter Automatic Chronograph with its H-21-Si movement. Thanks to its high-tech silicon balance spring, it counteracts the powerful magnetic fields found in cockpits and on flight decks.
