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Sturdy, reliable and maritime-ready, our Khaki Navy Frogman Automatic is now available in a 41mm case, engineered to be functional and wearable at once.

Proven itself as a dependable precision instrument, the Khaki Navy Frogman finds its roots in the original wristwatches worn by U.S. Navy underwater demolition teams or ‘frogmen” during WWII. The Hamilton Frogman was made to withstand the toughest environments. Equipped with a canteen-style screw-down crown to protect the mechanism from water ingress and a highly legible dial, the Frogman watches were relied on during the most dangerous missions in the deep.

Released to the public in 1951 and simultaneously debuted on the big screen in the drama “The Frogmen”, these timepieces gave life to the Khaki Navy Frogman of today.


Reinterpreted to become a modern adventure watch, the Khaki Navy Frogman Automatic pays tribute to its military roots, maintaining the strong DNA of its predecessor.

The newest versions are housed in a 41mm case enhanced with a unidirectional bezel featuring raised numerals and indexes for additional grip.

A nod to the original Frogman’s design, the watch’s screw-down crown is protected by a robust bridge-shaped crown guard to ensure its 30 bar (300m) water-resistance.

Just like the 46mm version, the 41mm Khaki Navy Frogman Automatic is powered by our H-10 automatic movement with 80 hours power reserve and Nivachron® balance spring resistant to shocks, temperature variations and magnetic fields.


When underwater, legibility is key. The 41mm Khaki Navy Frogman Automatic features an ultra-readable black or khaki green dial with touches of Super-LumiNova® to ensure precise reading under any circumstances.

The orange accents on the minute and second hands make them stand out while giving character to the dial, along with the split Arabic numeral at 12 o’clock, recalling military aesthetics.

Fitted with an imposing stainless steel bracelet or a waved rubber strap evoking the moving sea surface, the timepiece combines precision engineering and intricate design.

Whether you are exploring the depths of the sea or rocky beaches, the 41mm Khaki Navy Frogman is a reliable companion for navigating any mission.

Faithful to the line’s technical performance and distinctive look, the 41mm Khaki Navy Frogman will empower you to ride the waves with confidence.

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