Air pressure, Longines’s new pilot’s watch contains a twist you might not detect at once. There’s a bit triangle at the sting in the dial which, Even with being under the glass, rotates if you turn the bezel thanks to some clever engineering. Doxa teamed up with Watches of Switzerland https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/