Hamilton Khaki Field Mechanical vs Khaki Field Auto
Hamilton Khaki Field Mechanical H69439363 vs Hamilton Khaki Field Auto H70455533, compared on the specs each brand publishes.
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The short answer
Hand-wound or automatic: the two most popular Khaki Field variants on Hamilton's specs.
- Thickness: the Hamilton Khaki Field Auto H70455533 is 1.5 mm thicker (11 mm vs 9.5 mm).
- Water resistance: the Hamilton Khaki Field Auto H70455533 is 50 m more (100 m vs 50 m).
- Price: the Hamilton Khaki Field Mechanical H69439363 lists for $120 less in the US ($675 vs $795).
- Movement: Hamilton Khaki Field Mechanical H69439363 has Manual-wind; Hamilton Khaki Field Auto H70455533 has Automatic.
- Calibre: Hamilton Khaki Field Mechanical H69439363 has H-50; Hamilton Khaki Field Auto H70455533 has H-10.
Side-by-side specs
| Spec | Hamilton Khaki Field Mechanical H69439363 | Hamilton Khaki Field Auto H70455533 |
|---|---|---|
| Case diameter | 38 mm | 38 mm |
| Thickness | 9.5 mm | 11 mm |
| Lug width | 20 mm | 20 mm |
| Calibre | H-50 | H-10 |
| Movement | Manual-wind | Automatic |
| Power reserve | 80 h | 80 h |
| Water resistance | 50 m | 100 m |
| Crystal | Sapphire | Sapphire |
| Case material | Stainless steel | Stainless steel |
| Ships on | Canvas strap | Leather strap |
| US list price | $675 (US list) | $795 (US list) |
| Dial | Green | Black |
| Status | In production | In production |
| Suits wrists of about our sizing guide | 15.1–17.0 cm | 15.1–17.0 cm |
Specs summarised in our own words from the brand's product pages: H69439363 source (checked 3 Nov 2026) H70455533 source (checked 3 Nov 2026). "Not published" means the brand page we checked doesn't list it, so we leave it blank rather than guess.
Wrist fit
Lug-to-lug decides overhang more than diameter does. Enter your wrist to see how each one should wear.
- Hamilton Khaki Field Mechanical H69439363 –
- Hamilton Khaki Field Auto H70455533 –
Same rule of thumb as Watch Finder: case diameter of about 23.5% of your wrist circumference (−2 mm to +2.5 mm), and lug-to-lug no longer than about 29% of it plus 1 mm. A guide, not a rule; flat or round wrists differ.
Strap fit
Both take 20 mm straps, so straps move between them. Size charts: Hamilton lug width chart · Hamilton lug width chart.
Which should you buy?
It has the lower US list price, $675, a $120 difference.
It has the higher water-resistance rating: 100 m vs 50 m.
It is the slimmer case at 9.5 mm.
Prices and where to buy
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More: All Hamilton Khaki Field references · All Hamilton Khaki Field references.
Questions
Which is bigger, the Hamilton Khaki Field Mechanical H69439363 or the Hamilton Khaki Field Auto H70455533?
Per the brands, the Hamilton Khaki Field Mechanical H69439363 is 38 mm across and the Hamilton Khaki Field Auto H70455533 is 38 mm.
Which is cheaper?
The Hamilton Khaki Field Mechanical H69439363, at a US list price of $675 vs $795 when we checked.
Which is more water-resistant?
Hamilton Khaki Field Mechanical H69439363: 50 m. Hamilton Khaki Field Auto H70455533: 100 m.
Have you tested these watches?
No. This comparison uses brand-published specs and our own analysis of them, not hands-on testing.
Watch.co is independent and not affiliated with any brand. We haven't handled these watches for this page: everything here comes from brand-published specs and our own analysis. Brand names are used only to identify products.