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Hamilton Khaki Field Murph 38mm Unisex Watch
Ref. H70405730
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Stepping up in the same colour and case shape
The original Khaki Field Murph appeared on screen in Christopher Nolan's Interstellar, worn by Matthew McConaughey's character and later becoming the centrepiece of one of the film's pivotal scenes. Hamilton supplied the prop and then, to considerable demand, turned it into a production watch. This 38mm variant follows the 42mm original with the same design logic intact: a jet-black dial, cathedral-style hands in aged beige Super-LumiNova, and Arabic numerals that read clearly at a glance in any light. The absence of a date window keeps the dial exactly as the film showed it. At 38mm with a 44.7mm lug-to-lug, it sits closer to a field watch's working proportions than the larger model, and the 11.1mm case height disappears under a cuff without ceremony. The H-10 movement underneath is built on an ETA Powermatic base but runs to an 80-hour reserve — enough to leave it off the wrist over a long weekend and pick it up unwound on Monday — and the Nivachron balance spring gives it practical resistance to the magnetic fields that trouble conventional alloys. The open caseback lets you watch it run, which with a movement this legible feels like the right way to wear a watch that was already, in a sense, about time.
- Reference
- H70405730
- Brand
- Hamilton
- Collection
- Khaki Field
- Case size
- 38mm
- Case thickness
- 11.1mm
- Lug width
- 20mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Black
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- H-10
- Water resistance
- 100m
- Bracelet / strap
- Leather strap
- Strap colour
- Black
- Clasp
- Buckle
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 44.7mm
- 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 Field range (50), Back in Stock (3,988), Stainless Steel Watches (2,814), Automatic Watches (1,546), Leather Strap Watches (928), Sports Watches (700) and Dress Watches (481).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- 38mm suits most wrists
- 44.7mm lug-to-lug keeps the 38mm case wearable
- Sapphire crystal, which resists scratching
- 80-hour reserve survives a weekend off the wrist
Worth knowing
- Leather does not suit regular contact with water
Hamilton Khaki Field Murph alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | H70405730 | 32025A01 | T1378074406100 |
|---|---|---|---|
| Price | £865 | £860 | £795 |
| Case size | 38mm | 38mm | 38mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Leather strap | Rubber strap | Titanium bracelet |
| Power reserve | 80 hours | 38 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 44.7mm, 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
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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