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Hamilton Khaki Field Auto 38mm Unisex Watch Green
Ref. H70455160
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Stepping up in Hamilton's range
The Khaki Field traces its roots to the utilitarian timepieces Hamilton supplied to American military personnel through two world wars — watches built to be read fast, in poor light, under pressure. That inheritance is visible in the Arabic numerals and the plain hierarchy of the dial, but the moss green sunray finish here does something the originals never attempted: the surface shifts between a muted, almost flat khaki and something richer whenever the light catches it at an angle, the snailing on the hour ring adding a quiet layer of texture beneath the hands. At 38mm with an 11.5mm case height, it sits close to the wrist without the bulk that field watches often carry — a proportion that makes it genuinely unisex rather than nominally so, and one that passes under a shirt cuff without catching. The H-10 inside is Hamilton's own calibre, wound from the ETA base they know well but specified with a Nivachron balance spring for better resistance to the magnetic fields that trouble most mechanical movements in everyday use. The 80-hour power reserve means a watch left on the nightstand Friday evening is still running Monday morning. The see-through caseback rewards the curious owner: the rotor and movement are visible without removing anything, and it is a movement worth looking at.
- Reference
- H70455160
- Brand
- Hamilton
- Collection
- Khaki Field
- Case size
- 38mm
- Case thickness
- 11.5mm
- Lug width
- 20mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Green
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- H-10
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 47mm
- 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 6 collections
This watch appears in the Hamilton Khaki Field range (50), Stainless Steel Watches (2,814), Automatic Watches (1,546), Sports Watches (700), Green Dial Watches (383) and Field Watches (53).
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What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- 38mm suits most wrists
- Sapphire crystal, which resists scratching
- 80-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
Hamilton Khaki Field Auto alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | H70455160 | T1658071105100 | 68000Q77 |
|---|---|---|---|
| Price | £715 | £690 | £685 |
| Case size | 38mm | 38mm | 38mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 80 hours | 80 hours | — |
| This watch | Closely matched | Closely matched |
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?
20mm. 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 47mm, which suits wrists from roughly 16cm (6¼ 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 unisex, and at this size it suits any wrist that takes the dimensions.
Cheapest place to buy
Both Mappin & Webb and Goldsmiths list it at £715, so choose on delivery and warranty rather than price.
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