A bold new colour combination for Hamilton's Khaki Aviation X-Wind Automatic Chronograph, a pilot's watch with a camouflage brown dial and a 45 mm steel case coated in sand-coloured PVD, the same shade as the fabric strap fastened with a pin buckle. It is equipped with a system for calculating the drift angle, i.e. the angle formed between the direction in which the aircraft is intended to move and its actual course: it is shown by an aperture at 12 o'clock on the inner rotating bezel, while the two crowns at 2 and 4 o'clock operate it. At its heart is the H-21 calibre, a self-winding mechanical movement with silicon balance spring and 60-hour power reserve. Guaranteed water-resistant to a depth of 100 metres, it has a screw-down crown and a sapphire crystal with double anti-reflective treatment. It is on sale for €2,045. The watch is also available in a second version with a steel case, a deep blue dial and a fabric strap in the same colour. Its price is 1,945 euros.