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Tissot PRX Powermatic 80 40mm Unisex Watch Dark Blue
Ref. T1374071105101
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Stepping up in the same dial colour
The PRX case shape dates to 1978, and Tissot has been careful not to undo what made it work. This gradient dial variant, introduced in 2024, is the update worth noting: rather than the plain blue that preceded it, the dial shifts horizontally across the face, reading differently depending on angle and light, which pulls more out of a design that would otherwise be quiet. The movement inside is worth understanding. The Powermatic 80 is a developed version of ETA's 2824, fitted with a Nivachron antimagnetic hairspring and rated to ±5 seconds per day — tighter than a standard automatic. The 80-hour reserve is a practical advantage, not just a number: a watch left on the nightstand Friday evening is still running Monday morning. The exhibition caseback lets you see the rotor in motion, though the movement is not decorated for display. At 40mm with a 44mm lug-to-lug span, the PRX sits proportionately rather than overreaching. The integrated bracelet angles inward toward the wrist rather than dropping straight, which accounts for why reviewers find it wraps more naturally than the dimensions suggest. The push-button clasp releases cleanly, and the links lie without gaps.
- Reference
- T1374071105101
- Brand
- Tissot
- Collection
- PRX
- Case size
- 40mm
- Case thickness
- 10.9mm
- Case material
- Stainless steel
- Case shape
- Tonneau
- Dial
- Blue
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- ETA 2824
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Deployant clasp
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 39.5mm
- Power reserve
- 80 hours
- Warranty
- 2 years
Learn more about Tissot
Charles-Félicien Tissot and his son Charles-Émile founded the company in Le Locle in 1853, assembling gold pocket watches and, unusually for the time, exporting aggressively — Russia became a major market within a decade.
Tissot's history is a sequence of firsts achieved through willingness to try materials and ideas the establishment considered unserious. The first mass-produced pocket watch with two time zones came in 1853. The first anti-magnetic wristwatch in 1930. The Astrolon of 1971 was the first watch with a movement made largely of injection-moulded plastic, and it worked. The RockWatch of 1985 used Alpine granite for the case, followed by watches in wood and mother-of-pearl.
The T-Touch of 1999 was the most significant: a tactile sapphire crystal allowing the wearer to access altimeter, barometer, compass, thermometer, and chronograph by touching the glass, years before touchscreens were commonplace.
Tissot merged with Omega in 1930 and both became founding members of what is now the Swatch Group. Its position in the group is volume and accessibility — Swiss mechanical and quartz watches at prices most people can reach, with the Powermatic 80 movement offering an eighty-hour reserve at entry level.
The company has held timekeeping roles across cycling, basketball, motorsport, and fencing.
- 1853
- Founded in Le Locle by Charles-Félicien and Charles-Émile Tissot.
- 1930
- Merges with Omega; releases the first anti-magnetic wristwatch.
- 1971
- The Astrolon uses a plastic movement.
- 1985
- The RockWatch is cased in Alpine granite.
- 1999
- The T-Touch introduces a tactile sapphire crystal.
Also in 5 collections
This watch appears in the Tissot PRX range (56), Stainless Steel Watches (2,833), Automatic Watches (1,417), Blue Dial Watches (780) and Tonneau & Cushion Watches (119).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- 40mm suits most wrists
- 39.5mm lug-to-lug keeps the 40mm case wearable
- Sapphire crystal, which resists scratching
- 80-hour reserve survives a weekend off the wrist
Tissot PRX Powermatic 80 alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | T1374071105101 | H64475531 | C0294301601100 |
|---|---|---|---|
| Price | £640 | £640 | £755 |
| Case size | 40mm | 40mm | 40mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Leather strap | Leather strap |
| Power reserve | 80 hours | 80 hours | — |
| This watch | 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.
Will it fit my wrist?
Lug-to-lug is 39.5mm, which suits wrists from roughly 15cm (6 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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