Hamilton H64666735 Khaki Aviation Khaki Pilot Auto ChronoProduct Overview The Khaki Pilot series, inspired by aviation instruments, evokes the early days of aviation. During the golden age of aviation, pilots continued to challenge themselves in pursuit of greater heights. Hamilton has added a modern interpretation to that spirit of challenge, creating a sporty automatic chronograph movement. Specifications Product Number H64666735 Caliber H 31 Collection Khaki Aviation Movement Automatic Functions