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Tissot PRX Powermatic 80 40mm Carbon
Ref. T1379079720100
Sits in Tissot’s upper tier here — more premium than three quarters of the Tissot watches we list, which start at £245.
Price range £245 to £1,875 across 310 Tissot watches in stock.The PRX line began in 1978, and when Tissot revived it for the modern market the formula was straightforward: integrated proportions, a waffle-textured dial, and an automatic movement with enough reserve to survive a long weekend without winding. This carbon variant keeps that formula but replaces the steel case with forged carbon — not purely for the aesthetics, but because the material requires a steel core where threading would otherwise fail, which is standard practice and changes nothing about how it wears. What it changes is the surface. The marbled black-and-grey of forged carbon reads completely differently from polished or brushed steel; at 40.5mm across and 11.23mm thick, it sits closer to the wrist than most integrated-case watches, and the matte finish flattens the whole thing into something that disappears under a cuff rather than catching light. The lug-to-lug is a genuinely short 40mm, which is the figure that explains why it sits as well as it does regardless of wrist size. The dial indexes carry no lume — only the hands are treated — so at night the watch reads as two bright lines against dark, which is sufficient and honest about what it is. The Powermatic 80.111 inside uses a silicon balance spring — Tissot's Nivachron — which removes the movement's susceptibility to magnetic fields without requiring antimagnetic shielding elsewhere in the case. The 80-hour reserve is visible through the caseback, though the quick-release strap pins are awkward to reach given the lug angle and the caseback's slight protrusion, and anyone who changes straps regularly will notice it.
- Reference
- T1379079720100
- Brand
- Tissot
- Collection
- PRX
- Case size
- 40mm
- Case material
- Carbon
- Case shape
- Tonneau
- Dial
- Black
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- Powermatic 80
- Water resistance
- 100m
- Bracelet / strap
- Silicone strap
- Strap colour
- Black
- Clasp
- Buckle
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Power reserve
- 80 hours
- Strap
- Interchangeable
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 6 collections
This watch appears in the Tissot PRX range (56), Back in Stock (4,007), Automatic Watches (1,417), All Black Watches (292), Limited Edition Watches (167) 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
- Sapphire crystal, which resists scratching
- 80-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
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 | T1379079720100 | SPB463J1 | C0294261109160 |
|---|---|---|---|
| Price | £960 | £940 | £960 |
| Case size | 40mm | 40.2mm | 41mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Silicone strap | Stainless steel bracelet | Mesh bracelet |
| Power reserve | 80 hours | 72 hours | 80 hours |
| This watch | Closely matched | 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.
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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