With its distinct vintage military aviation design, the Khaki Pilot Pioneer Mechanical Chronograph revives the form and function of the chronographs issued to British Royal Air Force pilots in the 1970s. Rugged and reliable, this 40mm watch is powered by our exclusive hand-wound H-51-Si movement, ensuring precise timekeeping for your adventures. • Powered by the mechanical movement with a power reserve of up to 60 hours. • Presented on a brown leather strap with traditional buckle. • Scratch resistant sapphire crystal glass. • 40mm case width. • 100 metre water resistance.