The Hamilton Khaki Aviation Converter Auto Chrono H76746540 is a pilot's watch featuring a 44mm stainless steel case and a blue dial. It is equipped with the H-21-Si automatic movement, offering a 60-hour power reserve. The watch includes a bi-directional rotating slide-rule bezel for in-flight calculations, a day-date display at 3 o'clock, and chronograph functions. The brown leather strap complements the aviation-inspired design. Reference number: H76746540.