Hamilton Khaki Aviation Converter Auto ChronovsanOrdain Model 1

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.

Owners and reviewers widely praise the anOrdain Model 1 for its exquisite vitreous enamel dial, noting its depth, unique light play, and custom typography. The watch is also commended for its comfortable wearability, elegant design, and appealing price point for its handmade processes, with an 800 vickers hardened case resisting scratches well. Some owners report the Sellita SW200-1 movement's rotor is noticeable and the watch lacks lume. Significant wait times, potentially exceeding two years, are a frequently cited drawback. On balance, owners and reviewers rate the anOrdain Model 1 highly for its exceptional enamel dial and handcrafted aesthetic at the price.