Ref. H76416155 · Chronograph
Hamilton
Hamilton's automatic chronograph caliber, based on the Valjoux/ETA 7750, running at 28,800 vph with the base 7750's power reserve of around 44 hours. It powers Hamilton chronographs such as the Intra-Matic Auto Chrono and Khaki Aviation lines (the separate H-21 caliber is the 60-hour extended-reserve version).
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Khaki Aviation Khaki Pilot Pioneer Auto Chrono collection · 20 watches












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Hamilton on the secondhand market
Somewhere in +5.2% to +21.9%
29 matched watches
Chronographs as a group: +6.5% · 155 matched watches
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The community take
Hamilton Khaki Aviation Khaki Pilot Pioneer Auto Chrono owners praise its excellent dial legibility and unique case shape, with one owner noting it as a reliable step up in quality and another stating they haven't taken it off since purchasing. Reviewers highlight its charismatic, function-forward military design and vintage inspiration. Some owners find the bezel's detents unremarkable, and one notes the mineral crystal scratches more easily than sapphire. A 72-hour power reserve is mentioned, along with a winding stop and a non-screw-down crown limiting water confidence for some. On balance, owners and reviewers rate the Hamilton Khaki Aviation Khaki Pilot Pioneer Auto Chrono highly for its distinctive vintage design and strong legibility at its price point.
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