In the 1970s, Hamilton supplied British Royal Air Force pilots with hand-wound chronographs. The new Hamilton Khaki Pilot Pioneer Mechanical Chronograph is a tribute to the watches used by Lightning, Harrier Jump Jet, and Vulcan pilots. Inside the 40mm steel case beats the hand-wound H-51-Si movement, and looking at the dial, it seems little has changed. But let's find out how the new version holds up in a hands-on review.Back in 2017, Mike Stockton wrote about the original chronograph that Hamilton made for the RAF back in the 1970s. In his conclusion, he stated, The Hamilton Military Chronograph is a really purposeful looking watch with great history. The fact that these watches were really used on the job where the British Commonwealth was participating in various conflicts adds a dose of realism to these tool watches too. Me, I like the fact that it's extremely wearable and simply attractive. And if you look at the watch, it's easy to see why he enjoyed the chronograph that was outfitted with a Valjoux 7733 movement. The dial looks purposeful, and the case shape is interesting. The watch makes me think of my favorite RAF plane from that era, the English Electric Lightning. It was a Mach 2 interceptor with two engines on top of each other and a most-elegant wing design.