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Tissot PRX Powermatic 80 35mm Unisex Watch Black
Ref. T1372071105100
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Stepping up in the same dial colour
The PRX began life in 1978 as a quartz watch with an integrated bracelet, was shelved, then revived in 2021 — and it was only after that revival that Tissot added mechanical versions. This 35mm reference arrived in 2023, sitting alongside a 40mm sibling and carrying the waffle-pattern dial that marks the automatic line as distinct from the quartz models. The movement beneath that dial is an ETA C07.111 with a Nivachron hairspring, a titanium-alloy component that shrugs off magnetic interference far more readily than a conventional spring. Eighty hours of reserve and a rate of roughly ±5 seconds per day puts it close to COSC territory without the certification. The see-through caseback makes it worth examining. At 35mm the PRX reads compact on paper, but the integrated bracelet's end-links push the real lug-to-lug to around 45mm, so it fills a wrist more than the case diameter suggests. The satin-finish bracelet tapers from 24mm at the case to 16mm at the deployant clasp, giving it a clean taper that keeps the proportions coherent, and the quick-release system means swapping it out takes seconds. Tissot markets this size as unisex, and it wears that way.
- Reference
- T1372071105100
- Brand
- Tissot
- Collection
- PRX
- Case size
- 35mm
- Case thickness
- 11.3mm
- Lug width
- 24mm
- Case material
- Stainless steel
- Case shape
- Tonneau
- Dial
- Black
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- Powermatic 80
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Deployant clasp
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Power reserve
- 80 hours
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), Watches Under 37mm (1,509), Automatic Watches (1,417) and Tonneau & Cushion Watches (119).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- 35mm 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 | T1372071105100 | H70455733 | 68000Q77 |
|---|---|---|---|
| Price | £640 | £640 | £685 |
| Case size | 35mm | 38mm | 38mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Leather strap | Stainless steel bracelet |
| Power reserve | 80 hours | 80 hours | — |
| This watch |
|
|
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.
What size strap does it take?
24mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Is 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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