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Hamilton Khaki Aviation Automatic 45mm Mens Watch Green
Ref. H77735560
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 X-Wind carries the first drift angle calculator ever built into a wristwatch — a slide-rule arrangement that lets a pilot compute crosswind correction without reaching for anything else. Hamilton's aviation work goes back to timing the first U.S. airmail runs in the 1910s, and the X-Wind is where that heritage concentrates, translated into a tool with a specific aeronautical function rather than a broadly aviation-themed aesthetic. This green-dial release, dubbed Northern Lights, sits alongside a separate 44mm chronograph variant; this is the cleaner three-hand Day Date, the daily-wear piece of the pair. The crown sits on the left of the case, destro-style, keeping it clear of the knuckle during wear and giving the right flank over to the bezel controls, which are guarded against accidental operation. The green Type-B dial reads in a direct, unambiguous way — Arabic numerals, bold sword hands, the day-date window at 9 o'clock — with the kind of layout that was drawn for legibility first. At 45mm the watch is large but wears well because the 12.8mm profile keeps it from stacking off the wrist. The H-30 movement beneath the display caseback runs on a Nivachron balance spring, which resists magnetic fields and temperature variation more reliably than traditional alloys. The 80-hour reserve comes partly from running at 21,600 vph rather than the more common 28,800 — a deliberate choice that extends runtime at a modest cost to the sweep of the seconds hand, a trade most owners will find sensible.
- Reference
- H77735560
- Brand
- Hamilton
- Collection
- Khaki Aviation
- Case size
- 45mm
- Case thickness
- 12.8mm
- Lug width
- 22mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Green
- Crystal
- Sapphire
- Bezel
- Rotating
- Movement
- Automatic
- Calibre
- ETA C07.111
- Functions
- Chronograph, Day-date
- Water resistance
- 100m
- Bracelet / strap
- Leather strap
- Strap colour
- Brown
- Clasp
- Buckle
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 54mm
- Power reserve
- 80 hours
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 Aviation range (8), Stainless Steel Watches (2,833), Automatic Watches (1,417), Chronograph Watches (1,131), Leather Strap Watches (904), Watches 44mm and Over (810) and Sports Watches (667).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- Sapphire crystal, which resists scratching
- 80-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
- One of Hamilton's more premium watches
Worth knowing
- 45mm is a large watch with real presence
- Leather does not suit regular contact with water
Hamilton Khaki Aviation alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | H77735560 | 010-03198-11 | C0434271104100 |
|---|---|---|---|
| Price | £1,070 | £1,030 | £1,180 |
| Case size | 45mm | 47mm | 42mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Leather strap | Silicone strap | Stainless steel bracelet |
| 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 100m it is rated for swimming and snorkelling, though not for 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 comparedHow long does it run for when it's not worn?
About 80 hours fully wound — enough to sit off the wrist over a weekend and still be running.
What 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.
Will it fit my wrist?
Lug-to-lug is 54mm, which suits wrists from roughly 18.5cm (7¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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