Buying guide
Tissot vs Hamilton
The two Swiss brands that matter at the top of the affordable band. Both give you 80 hours and sapphire as standard. They diverge on almost everything else.
Cross the $500 line and the field narrows to two names. Tissot and Hamilton are both owned by the Swatch Group, both build on the same ETA movement architecture, and both give you a sapphire crystal and an 80-hour power reserve as standard - the two upgrades that most clearly separate this tier from the Japanese watches below it.
So they are close cousins with different personalities. This compares them on the axes that actually decide a purchase, and ends with a straight recommendation for each type of buyer. Specifications come from each maker's published product data.
Disclosure
Some links here are affiliate links — mostly to Amazon. If you buy through one we may earn a small commission, at no extra cost to you. It never changes which watch we pick or the price you pay. Prices are pulled live and date-stamped; where we can't verify one, we show none. Full disclosure.
The contenders
Tissot
Tissot PRX Powermatic 80
Price as of Sep 6, 2026. Prices change — Amazon's is the one that counts.
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Hamilton
Hamilton Khaki Field Auto 38mm
Price as of Sep 6, 2026. Prices change — Amazon's is the one that counts.
#ad · we may earn a commission from this link to Hamilton Khaki Field Auto 38mm
Head-to-head
| Factor | Tissot | Hamilton |
|---|---|---|
| Core movement | Powermatic 80 | H-10 automatic / H-50 hand-wound |
| Power reserve | Up to 80 hours | 80 hours |
| Antimagnetic hairspring | Nivachron | Nivachron |
| Crystal | Sapphire across the range | Sapphire across the range |
| Best water rating | 300m (Seastar) | 100m (Navy Scuba / Khaki Field Auto) |
| Smallest core size | 35mm (PRX 35) | 38mm (Khaki Field) |
| Slimmest | 9.75mm (Le Locle) | Khaki Field Mechanical |
| Design identity | Broad - dress, diver, integrated | Narrow - military field, done definitively |
Where Tissot wins: water, range and the price floor
The Seastar 1000is 300m in a 12.48mm case, which is a genuinely remarkable combination and comfortably the most capable watch either brand sells in this band. Hamilton's best is 100m. If you want a Swiss watch you can actually dive with, this is not a close contest.
Tissot also covers more ground. The PRX is a seventies integrated-bracelet design, the Le Locle is a 9.75mm classical dress watch, the Seastar is a diver, and the PRX 35 brings the range down to a 35mm case - the smallest Swiss automatic we list, and a real answer for smaller wrists. Hamilton essentially makes one design very well.
Where Hamilton wins: it drew the design everyone copies
The Khaki Field is not a homage to anything. Hamilton supplied military watches, and the matte case, black dial, white Arabic numerals and inner 24-hour ring on a Khaki Field Auto are the original that the entire affordable field-watch category references - including Seiko's SRPG31.
It also sizes better for the genre. The Khaki Field is 38mm and wears exactly like 38mm, which on a field watch is correct in a way that most modern interpretations are not. And the hand-wound Khaki Field Mechanical is the cheapest honest route into Swiss mechanical ownership that we are willing to recommend.
The movements are closer than the badges suggest
Both brands sit on the same Swatch Group movement architecture, both hit 80 hours, and both fit a Nivachron antimagnetic hairspring. Hamilton's H-10 and Tissot's Powermatic 80 do the same job by the same method: a lower beat rate and a longer mainspring.
What that means practically is that neither brand can claim a movement advantage over the other, and both have a decisive advantage over the Japanese calibers below them - not in accuracy, but in endurance. Eighty hours is the reason a watch survives a weekend in a drawer, and it is covered in power reserve explained.
The uncomfortable question: is either worth it?
An Orient Kamasu gives you sapphire, 200m and a hacking in-house movement for a fraction of what either brand charges. On specification per dollar, Japan wins and it is not close. We say this on every page where it is true, and it is true here.
What Swiss money buys is the reserve, the antimagnetic hairspring, better finishing and case hardware, and a design lineage. Those are real and none of them are necessary. If the arithmetic has to work, the value list is the honest place to shop; if you want the watch, buy the watch.
The verdict
- You want one Swiss watch that does everything → Tissot Seastar. 300m, 80 hours, 40mm, sapphire.
- You want a field watch → Hamilton Khaki Field Auto. It is the original, at the right size.
- You want a slim dress watch → Tissot Le Locle at 9.75mm.
- You want the cheapest way into Swiss → Hamilton Khaki Field Mechanical, if you are happy to wind it. See automatic vs hand-wound first.
- You have a small wrist → Tissot, for the 35mm PRX.
The Swiss shortlist ranks every one of these against each other with live prices, and PRX vs Khaki Field settles the model-level version of this argument.
Questions
FAQ
Are Tissot and Hamilton the same company?
Both are owned by the Swatch Group and both build on the same Swiss movement architecture, which is why both offer 80-hour reserves and Nivachron hairsprings. They are run as separate brands with different designs and price positions.
Which is better for water, Tissot or Hamilton?
Tissot, clearly. The Seastar 1000 is rated 300m with a screw-down crown and a rotating bezel; Hamilton's best in this band is 100m. If you want a Swiss watch you can dive with, it is the Tissot.
Is Hamilton worth more than a Seiko?
Only for the sapphire crystal, the 80-hour reserve, the 38mm sizing and the fact that Hamilton drew the field-watch design rather than copying it. A Seiko 5 Sports SRPG31 is more practical and costs a third as much.
Which Swiss watch should I buy under $1,000?
The Tissot Seastar if you want maximum capability, the Hamilton Khaki Field Auto if you want the definitive field watch, and the Tissot Le Locle if you want something slim for a cuff. All three are ranked on the Swiss shortlist.
Specs & sources
Specifications on this page are compiled from manufacturer datasheets, official product pages, and published standards. Prices are pulled live from Amazon and date-stamped; nothing is invented.
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