Hamilton Khaki Field Power Reserve mechanical watch with black dial and khaki NATO strap, 40 mm

A military icon with a modern twist

As a flagship of the Khaki Field collection, the Hamilton Khaki Field Mechanical Power Reserve blends military heritage with functional innovation. Staying true to the rugged, no-nonsense design that has made the line legendary, this new version introduces a practical evolution: a power reserve indicator. Inspired by the timepieces once worn by soldiers on the field, this 40 mm model wears its utilitarian spirit proudly. A brushed stainless steel case, ultra-readable black dial, bold Arabic numerals and a khaki NATO strap form a silhouette that is both vintage and modern.

An exclusive calibre with 80 hours of autonomy

Powered by the H-23 hand-wound movement, developed exclusively by ETA for Hamilton, this watch features a first for the collection: a power reserve display integrated directly on the dial. The “F” (Full) on the left side shows when the watch is fully wound, while the “E” (Empty) reminds you when it’s time to wind again. Beating at a classic rate, this mechanical heart offers an impressive 80-hour power reserve – perfect for switching between busy days and off-duty time. With sapphire crystal, anti-reflective coating, Super-LumiNova on the hands and indexes, and a Nivachron hairspring, every detail has been fine-tuned for robustness and lasting performance.