Chronograph wristwatch automatic aviator for gentlemen, brand Hamilton, model Khaki X-Wind. Case of steel of 44 mm in diameter, (excluding crowns). Black dial with sub-dials of the chronometer in silver and sub-dial for the second dial in black. Date and day of the week in white, at nine. Bi-directional steel bezel. Arabic numerals. Luminescent hands. Sapphire crystal. Automatic movement of high-quality Valjoux 7750. The case has three crowns, all of them screw back. The crown of the left is used to set the time and to adjust the date and day of the week. Next to this crown there are the two chronometer push buttons. There are two crowns to the right which move the scales the pilot uses to calculate the drift angles to register the cross winds. The bezel of the case is screw back and comes with a sapphire crystal, through which you can see the automatic mechanism movement. WR 10 ATM. Original brown leather strap, with a handle width of 22 mm and buckle clasp. The watch has been used in a few occasions so it is in very good condition. (see the photographs carefully). Shipped with box and original papers. Insured shipping.