Hamilton Khaki Aviation Converter Auto ChronovsFarer GMT

The Hamilton Khaki Aviation Converter Auto Chrono is widely described as a large 44mm pilot's watch with a functional slide rule bezel. Reviewers note its well-finished steel case, featuring a robust satin-brushed finish with polished accents and chamfers, and a legible blue sunray dial with applied Super-LumiNova markers and old-fashioned hands. It is powered by the H-21-Si automatic chronograph movement, an upgraded ETA-based caliber with a silicon balance spring for anti-magnetic properties, offering a 60-hour power reserve. The watch is rated to 100m water resistance and features a bi-directional slide rule bezel with graduations printed under K1 mineral glass for scratch protection, which is easy to manipulate due to its deeply notched steel design. Some find the slide rule bezel complicated to use without a manual. One owner notes its character does not appeal as much as other slide bezel chronos.

The Farer GMT Automatic is praised for its vibrant, legible sea-green sunburst dial and well-proportioned 39.5mm, 10mm thin case. The Top Grade ETA 2893-2 movement offers hacking seconds and a 42-hour power reserve. Reviewers note the bronze crown, intended to develop patina, as a potentially unpopular design choice. Overall, reviewers consider the Farer GMT Automatic good value at its price point, highlighting the dial and case proportions as key strengths.