Hamilton

Frogman Auto

Reference Number :

H77725335

Series : Khaki Navy

Retail: $1,195

(As of: 06/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Hamilton. If you are interested in selling this watch to us, you can contact us here.

Quick TakeSome watches are just built to take a beating, and this Hamilton Frogman is practically begging for a challenge. It's a direct descendant of the tough-as-nails timepieces issued to U.S. Navy 'frogmen' demolition teams, and that DNA is obvious in every detail. The chunky stainless steel case feels indestructible, and the prominent crown-locking device isn't just for show; it's a serious piece of hardware that screams 'ready for anything'. While it's a professional-grade dive watch with a 300-meter water resistance rating and a super-legible dial, it refuses to be boring. That splash of fiery red on the bezel gives it a shot of adrenaline, a visual punch that sets it apart from a sea of monotonous black divers. And with the H-10 movement tucked inside, you get a massive 80-hour power reserve. You can take this watch off Friday afternoon, leave it on your nightstand all weekend, and it'll still be ticking perfectly come Monday morning, ready for the next adventure.

DescriptionEngineered for aquatic performance, the H77725335 model is constructed around a robust 42mm stainless steel case with a measured thickness of 12.5mm. Its structural integrity is designed to withstand significant pressures, certified by a water resistance rating of 30 bar, which is equivalent to 300 meters or 435 psi. A critical component for achieving this depth rating is the screw-down crown, which provides a secure seal against water ingress. The watch face is protected by a sapphire crystal, a material selected for its exceptional scratch resistance, further enhanced with an anti-reflection coating to ensure maximum legibility under direct light. The case architecture incorporates a 20mm lug width, dictating the interface point for the strap attachment. The unidirectional rotating bezel, finished in a high-contrast red, is a functional safety element for tracking dive time, featuring a 60-minute scale with clear markings.

Internally, this timepiece is powered by the Hamilton H-10 caliber, an automatic three-hand movement. This self-winding mechanism obviates the need for manual winding with regular wear and provides a substantial power reserve of 80 hours, allowing the watch to remain operational for over three days when fully wound. The black dial serves as a backdrop for indices and hands treated with Super-LumiNova, a phosphorescent material that ensures visibility in low-light or underwater conditions. The supplied strap, with reference number H6007761361, is secured to the wrist by a traditional pin buckle system. This buckle has a width of 18mm and provides a reliable fastening method suitable for active use. The movement itself features intricate contrasting snail and pearled patterns, a testament to the level of detail present in its construction.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size42 mm

MovementAutomatic

CaliberH-10

FunctionsHours, Minutes, Seconds, Date

Power Reserve80 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Dial ColorBlack