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Hamilton Khaki Navy Frogman 46mm Mens Watch Black
Ref. H77825331
Sits in Hamilton’s upper tier here — more premium than three quarters of the Hamilton watches we list, which start at £375.
Price range £375 to £2,265 across 72 Hamilton watches in stock.The Frogman name reaches back to the canvas-strapped "Canteen" watches Hamilton supplied to U.S. Navy underwater demolition teams during the Second World War — the units that became the SEALs. A commercial version followed in 1951, and the current generation, revised in 2022, reworked the crown guard into a more symmetrical shape that both protects the crown and sits more cleanly against the case. The H-10 movement inside is where Hamilton has done its most considered work. An 80-hour power reserve is generous enough to carry a weekend off the wrist, the Nivachron balance spring resists magnetic fields without needing a soft-iron cage, and the movement beats at 21,600vph — steady rather than hurried. The orange-tipped seconds hand reads well against the black dial at a glance, and the SuperLuminova is applied with enough generosity that the watch is genuinely useful in the dark. At 46mm the case is large and makes no apology for it. The angular lugs and flat brushed planes keep it looking purposeful rather than bloated, and the accordion-profile green rubber strap does enough to follow the wrist that the size is less confrontational than the measurements suggest. The crown guard takes a little adjusting to — reaching past it is not quite instinctive — but it causes no discomfort in wear, which is precisely what a redesigned guard ought to achieve.
- Reference
- H77825331
- Brand
- Hamilton
- Collection
- Khaki Navy
- Case size
- 46mm
- Case thickness
- 13.58mm
- Lug width
- 22mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Black
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- H-10
- Functions
- Small seconds
- Water resistance
- 300m
- Bracelet / strap
- Rubber strap
- Strap colour
- Green
- Clasp
- Buckle
- Lume
- Super-LumiNova
- Retailer
- Goldsmiths
Learn more about Hamilton
Hamilton was founded in Lancaster, Pennsylvania in 1892, and its early business was the railroad. American rail accidents caused by unsynchronised timekeeping had forced the industry to adopt strict standards, and Hamilton built pocket watches accurate enough to meet them — earning the description the watch of railroad accuracy.
Two things then defined it. The first was war: Hamilton supplied over a million watches to American forces in the Second World War, suspending civilian production entirely, and its marine chronometers were fitted across the US Navy.
The second was electricity. The Ventura of 1957 was the first battery-powered electric wristwatch, and its asymmetric shield-shaped case, designed by Richard Arbib, looked like nothing before it. Elvis Presley wore one in Blue Hawaii.
Hamilton's cinematic presence is unusually deep — over five hundred films — and includes the watches designed for 2001: A Space Odyssey with Stanley Kubrick, and appearances in Interstellar and Tenet.
American manufacturing ended in 1969 as the quartz crisis approached. The brand was acquired by the Swiss and is now part of the Swatch Group, based in Biel, where it occupies a distinctive position: American design heritage, Swiss production, and ETA movements with long power reserves at accessible prices. The Khaki Field, descended from the wartime issue watches, is its best-known line.
- 1892
- Founded in Lancaster, Pennsylvania.
- 1918
- Supplies the first US airmail flights.
- 1957
- The Ventura is the first electric wristwatch.
- 1968
- Designs the watches for 2001: A Space Odyssey.
- 1974
- Becomes Swiss-owned; now part of the Swatch Group.
Also in 7 collections
This watch appears in the Hamilton Khaki Navy range (8), Back in Stock (4,007), Stainless Steel Watches (2,833), Automatic Watches (1,417), Watches 44mm and Over (810), Sports Watches (667) and Dive Watches (486).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 300m water resistance, rated for actual diving
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- One of Hamilton's more premium watches
Worth knowing
- 46mm is a large watch with real presence
Hamilton Khaki Navy Frogman alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | H77825331 | C0326074405100 | T1209071704100 |
|---|---|---|---|
| Price | £1,145 | £1,100 | £870 |
| Case size | 46mm | 43mm | 44mm |
| Water resistance | 300m | 300m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Titanium bracelet | Rubber strap |
| Power reserve | — | 80 hours | — |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 300m it is rated for swimming, snorkelling and recreational diving.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedWhat size strap does it take?
22mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Is it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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