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PRX 35 vs 40

Tissot PRX 35mm vs 40mm

Same movement, same thickness, same service price. The only real decision is the one that matters most: size.

By Sawyer V. · Published

The short answer

Choose by wrist. The PRX 35 and PRX 40 share the Powermatic 80's 80 hours, sapphire, 100m, a 10.93mm case and Tissot's published $210 service. The 40mm suits most wrists and is the classic PRX size; the 35mm is for a smaller wrist or a vintage proportion. Neither takes a standard strap.

The PRX is one watch in two sizes, and the only things that change between them are the case diameter and the bracelet fitting that goes with it. That makes the choice simple, and entirely about your wrist.

Side by side

PRX 35mmPRX 40mm
Diameter35mm40mm
Thickness10.93mm10.93mm
MovementPowermatic 80, 80 hoursPowermatic 80, 80 hours
CrystalSapphireSapphire
Water resistance100m100m
Bracelet fitting11mm12mm
Warranty2 years2 years
Published service$210$210

On prices: we publish no figure we have not verified today, so every buy button reads "Check price on Amazon". Service prices quoted here are the manufacturers' own published figures.

How we picked

We have not worn these watches. What follows is what we checked instead, on documents you can open yourself — the same criteria, in the same order, on every roundup on this site. The full method is on the methodology page.

  1. 01Diameter

    35mm or 40mm. Tissot does not publish the lug-to-lug for either.

  2. 02Movement

    The same Powermatic 80, with 80 hours, in both.

  3. 03Thickness

    10.93mm on both, as Tissot states.

  4. 04Bracelet

    Integrated: an 11mm fitting on the 35mm, 12mm on the 40mm.

  5. 05Service

    The same $210 published complete service.

Disclosure · Some links below are Amazon affiliate links. If you buy through one we earn a commission at no extra cost to you. It does not decide what goes on this page or in what order — here is exactly how that works.

Quick picks

Ranked on the Keep Score below — six published specifications, weighted identically on every page. The last row is the one we would not buy.

#WatchBest forKeep ScorePrice
1

Tissot PRX Powermatic 80 40mm T137.407.11.041.00

40mm, 10.93mm, 80 hours, 100m.

The PRX for most wrists8.0/10
Check price
2

Tissot PRX 35mm Powermatic 80 T137.207.11.041.00

35mm, 10.93mm, 80 hours, 100m.

The PRX for a smaller wrist8.0/10
Check price
3

Citizen Tsuyosa NJ0150-56E

40mm, 8210, sapphire, five years.

The integrated-bracelet alternative7.7/10
Check price
—

Orient AK00 Version 3 RA-AK0007S30B

Domed sapphire at 14mm thick.

Skip this one

Not if thinness is why you want a PRX8.0/10
Check price

Keep Score is arithmetic, not opinion — six published specifications, weighted the same way on every page. The formula is on our methodology page, so you can re-run it yourself.

01

Tissot PRX Powermatic 80 40mm T137.407.11.041.00

Best for: The PRX for most wrists

8.0/10

Keep Score

Crystal
2.5/2.5
Serviceability
2.5/2.5
Water resistance
1.1/1.5
Warranty
0.7/1.5
Strap standard
0.2/1
Cost-to-keep transparency
1/1
Check price on Amazon

#ad Affiliate link · We publish no price we have not verified today

The classic PRX size: 40mm with the Powermatic 80's 80 hours, sapphire and 100m, and Tissot's published $210 service.

The 12mm bracelet fitting is not a strap size, and Tissot does not publish the lug-to-lug.

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.

Manufacturer specifications for the Tissot PRX Powermatic 80 40mm T137.407.11.041.00
MovementSwiss automatic, Powermatic 80
Power reserve80 hours
Case40mm 316l stainless steel
Lug-to-lugNot published
Thickness10.93mm
Lug width12mm
Crystalsapphire
Water resistance100m
Warranty2 years

Specifications read from Tissot product page, T137.407.11.041.00.

02

Tissot PRX 35mm Powermatic 80 T137.207.11.041.00

Best for: The PRX for a smaller wrist

8.0/10

Keep Score

Crystal
2.5/2.5
Serviceability
2.5/2.5
Water resistance
1.1/1.5
Warranty
0.7/1.5
Strap standard
0.2/1
Cost-to-keep transparency
1/1
Check price on Amazon

#ad Affiliate link · We publish no price we have not verified today

Everything the 40mm has at 35mm — the same movement, thickness, water rating and service price.

At the same 10.93mm on a smaller diameter, it reads slightly chunkier in proportion. The bracelet uses an 11mm fitting.

An 80-hour Swiss automatic at 35mm with sapphire and 100m, backed by Tissot's published $210 service price. The integrated bracelet is the long-term trade — an 11mm fitting is not a strap size, so you keep the bracelet the watch came with or you keep nothing.

Manufacturer specifications for the Tissot PRX 35mm Powermatic 80 T137.207.11.041.00
MovementTissot Powermatic 80, automatic
Power reserve80 hours
Case35mm 316l stainless steel
Lug-to-lugNot published
Thickness10.93mm
Lug width11mm
Crystalsapphire
Water resistance100m
Warranty2 years

Specifications read from Tissot product page, T137.207.11.041.00.

03

Citizen Tsuyosa NJ0150-56E

Best for: The integrated-bracelet alternative

7.7/10

Keep Score

Crystal
2.5/2.5
Serviceability
2.5/2.5
Water resistance
0.6/1.5
Warranty
1.5/1.5
Strap standard
0.2/1
Cost-to-keep transparency
0.4/1
Check price on Amazon

#ad Affiliate link · We publish no price we have not verified today

If neither PRX suits, Citizen's Tsuyosa is the other integrated-bracelet automatic with sapphire, at 40mm with five years of warranty, one tier down.

42 hours, 50m and a 9.1mm lug width. [PRX vs Tsuyosa](/styles/dress-watches/tissot-prx-vs-citizen-tsuyosa) compares them in full.

Sapphire and an in-house automatic for the money is genuinely rare. The catch is structural: Citizen lists the lug width as 9.1mm, which means the bracelet is the watch. When it wears out, no strap shop can help you.

Manufacturer specifications for the Citizen Tsuyosa NJ0150-56E
MovementCitizen 8210 automatic, hacking, 42-hour power reserve
Power reserve42 hours
Case40mm stainless steel
Lug-to-lugNot published
ThicknessNot published
Lug width9.1mm
Crystalsapphire
Water resistance50m
Warranty5 years

Citizen's five-year limited warranty excludes the power cell, case, bracelet and strap.

Specifications read from Citizen Watch product page, NJ0150-56E.

Skip this one

Orient AK00 Version 3 RA-AK0007S30B

Best for: Not if thinness is why you want a PRX

8.0/10

Keep Score

Crystal
2.5/2.5
Serviceability
2.5/2.5
Water resistance
0.6/1.5
Warranty
1.05/1.5
Strap standard
1/1
Cost-to-keep transparency
0.4/1
Check price on Amazon

#ad Affiliate link · We publish no price we have not verified today

The AK00 is a sapphire automatic one tier down, with domed sapphire and a day-date.

At 14mm thick with a 50.5mm lug-to-lug, it is the opposite of the PRX's 10.93mm integrated case. If thinness and a close fit are why you want a PRX, this is not the alternative.

Domed sapphire at this price is unusual and it is why this one is here. The 50.5mm lug-to-lug is not — that is a big watch, whatever the 42.5mm on the spec sheet suggests.

Manufacturer specifications for the Orient AK00 Version 3 RA-AK0007S30B
MovementOrient F6B24 in-house automatic, hand-winding, hacking
Power reserve40 hours
Case42.5mm stainless steel
Lug-to-lug50.5mm
Thickness14mm
Lug width22mm
Crystalsapphire
Water resistance50m
Warranty3 years

Specifications read from Orient Watch USA product page, RA-AK0007S30B.

How to choose

  • Pick 40mm if most watches you own are 38mm or larger, or you want the classic size.
  • Pick 35mm if your wrist is small, your current watch is under 38mm, or you want a vintage proportion.
  • Check your wrist, not the photos. Tissot does not publish the lug-to-lug for either, so try one on if you can.

The full verdict on the watch itself is on is the Tissot PRX worth it.

Questions people actually ask

PRX 35mm or 40mm?

The 40mm for most wrists; the 35mm for a smaller wrist or a vintage proportion. Everything but the size and the bracelet fitting is identical.

Is the PRX 35 thinner than the 40?

No. Tissot lists both at 10.93mm.

Is the PRX 35 a women's watch?

It is a size, not a gender. At 35mm it suits any smaller wrist; the unisex watches page ranks it with other watches in that range.

Do both have the same movement?

Yes — the Powermatic 80, with 80 hours of reserve, and the same $210 published service.

Sources

Every specification and figure on this page came from one of these documents. Where a manufacturer does not publish something, the page says so rather than filling the gap.

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