Tissot PRX vs Hamilton Khaki Field Auto

47mm of published lug-to-lug on a 38mm case is the most useful number in this comparison, because it is the one that tells you whether the watch fits. Tissot does not publish an equivalent figure, so with the PRX you are buying a diameter and finding out later.

The 20mm standard lug width is the other half of it. Leather, NATO, rubber, a bracelet — all of it fits, all of it is cheap, and all of it will still be made in twenty years. A strap is the part of a watch that fails most often, and this is the watch where that costs you nothing.

The H-10 runs 80 hours with a Nivachron balance spring, which is Hamilton's antimagnetic alloy, so it holds rate around the laptops and phone cases that actually magnetize watches. Sapphire and 100m match the PRX exactly.

The gap is information: Hamilton publishes a European service price list and nothing for the US, so you cannot find out what an overhaul costs before committing. It scores 8.6 — the highest of any Swiss watch on this site with a live Amazon listing.

Mechanically identical to the Murph and usually cheaper, because it does not carry a film's name. 47mm lug-to-lug on a 38mm case is a genuinely versatile footprint.

The integrated bracelet is the entire appeal and the entire problem. It is what makes the PRX read as a 1970s sports watch and go with a suit, and it is why this is the watch people actually want when they ask about Swiss automatics at this money.

10.93mm with sapphire, 100m and the Powermatic 80's 80 hours is a genuinely good specification sheet, and Tissot is the only brand in this comparison that will tell you what keeping it costs: $210 for a complete mechanical service in the US, with 24 months of warranty on the work.

Then the trade, and it is permanent. The 12mm fitting is not a strap size. You keep the bracelet the watch came with or you keep nothing, and Tissot publishes no lug-to-lug, so you cannot check the footprint in advance. It scores 8.0, and 0.8 of that gap is the bracelet alone.

If the look is what you want and 40mm is too much watch, the 35mm version is identical in movement, thickness, crystal, water rating and service price. Our PRX 35 against 40 page compares the two sizes directly.

Tissot publishes a US complete-service price of $210 for a mechanical two-or-three-hand watch, which makes this the most predictable Swiss automatic here to own. The 12mm lug width is not a strap size — the bracelet is part of the case.

The hand-wound version of the same idea, and at 9.5mm it is the thinnest watch on this site. Same 38mm case, same published 47mm lug-to-lug, same sapphire, same 20mm lugs, same 80 hours — you give up the automatic winding and 50m of water resistance.

Winding it is a habit rather than a chore at 80 hours: once every three days keeps it running. For a lot of people this is the better watch and it costs less than either of the two above.

50m rather than 100m is the real downgrade, so it is not the one to swim in. It scores 8.1.

No rotor means fewer parts and a thinner case, and the H-50 runs 80 hours on a wind. This is the simplest genuinely good mechanical watch on this site, and simple is what survives.