Hamilton

Frogman Auto

Reference Number :

H77825330

Series : Khaki Navy

Retail: $1,295

(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 TakeForget keeping this one in a box. The Hamilton Khaki Navy Frogman is a beast that begs for adventure, a modern tribute to its military-grade ancestors that feels utterly invincible on the wrist. That beefy 46mm case isn't just for show; it’s a declaration of capability, and the signature crown-locking device feels like you're arming a piece of high-spec equipment every time you secure it. The dial is pure function—bold, white markers leap out from the black background, and the vibrant orange minute hand is a brilliant touch, demanding your attention for at-a-glance dive timing. But the real magic is the H-10 movement humming inside. Knowing you have an 80-hour power reserve means you can take it off Friday, beat it up all weekend, and it’ll still be ticking accurately come Monday. It’s less a watch and more a reliable partner for anyone whose pulse quickens at the thought of the unknown depths.

DescriptionEngineered with substantial dimensions, the H77825330 is constructed around a 46mm stainless steel case with a measured thickness of 13.58mm. Its architecture is purpose-built for subaquatic environments, featuring a prominent screw-down crown protected by a robust bridge-style guard mechanism to ensure water integrity. The black dial is shielded by a sapphire crystal, treated with an anti-reflective coating to maximize legibility under all lighting conditions. A unidirectional rotating bezel with a luminous pip at the 12 o'clock position and clear 10-minute interval markings allows for the precise tracking of dive times. The lug width is specified at 22mm, providing a secure and balanced integration with the accompanying strap.

At the core of this timepiece operates the Hamilton caliber H-10, an automatic three-hand movement. This mechanism provides an extended power reserve of 80 hours, a significant operational advantage. The movement's precision is enhanced by the inclusion of a Nivachron balance spring, which offers superior resistance to the effects of magnetic fields and temperature variations, contributing to stable timekeeping performance. The watch's formidable water resistance is rated at 30 bar, equivalent to 300 meters or 934.2 feet, verifying its capability for serious diving applications. It is secured to the wrist by a black rubber strap, which tapers from the 22mm lug width to a 20mm stainless steel pin buckle, designed for durability and comfort during prolonged wear.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size46 mm

MovementAutomatic

CaliberH-10

FunctionsHours, Minutes, Seconds

Power Reserve80 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

CrownScrew Down