With a distinct vintage military aviation design, this Khaki Pilot Pioneer Mechanical Chronograph brings back the form and function of the chronographs issued to British Royal Air Force pilots in the 1970s. Rugged and reliable, the 40mm stainless steel watch is powered by Hamilton's hand-wound H-51-Si movement, and has a 60-hour power reserve. Additional features include a sapphire crystal, black dial with two chronograph subdials and is water-resistant to 100 meters. The brown leather strap secures in place with a buckle clasp.