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Tissot PRX Powermatic 80 35mm Unisex Watch Blue
Ref. T1372071104100
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Stepping up in the same dial colour
The PRX is a revival of a 1978 Tissot integrated-bracelet design — a 35mm stainless steel watch built around the brand's first quartz movement, intended to be precise and robust enough for 100 metres of water resistance. Tissot brought it back in 2021, initially in quartz, then opened the line to automatic movements. This blue-dialled 35mm version arrived in 2023 as the smaller sibling to the 40mm Powermatic 80, sharing its movement, layout and finishing. One quick way to tell automatics from quartz within the PRX family: the waffle-textured dial belongs to the self-winding models. The movement is ETA's calibre 80.111, wound by the wrist and capable of running for 80 hours unworn — three days on the bedside table without losing time. It uses a Nivachron balance spring, a titanium alloy Tissot developed specifically to resist the magnetic fields that ordinary steel springs cannot. At 35mm with an integrated bracelet, it wears larger than the diameter suggests: the first links do not articulate, so the effective length across the wrist runs closer to 45mm. Wrists under about 17cm will find the fit considered; on larger wrists the proportions tip the other way. The satin-finish bracelet tapers significantly toward the clasp, which softens the look without interrupting the integrated-bracelet line.
- Reference
- T1372071104100
- Brand
- Tissot
- Collection
- PRX
- Case size
- 35mm
- Case thickness
- 10.93mm
- Lug width
- 11mm
- Case material
- Stainless steel
- Case shape
- Tonneau
- Dial
- Blue
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- Powermatic 80
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Retailer
- Goldsmiths
Additional specifications
- Power reserve
- 80 hours
- Weight
- 104g
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), Stainless Steel Watches (2,833), Watches Under 37mm (1,509), Automatic Watches (1,417), Blue Dial Watches (780) and Tonneau & Cushion Watches (119).
Manufacturer’s guarantee
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 | T1372071104100 | 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?
11mm. 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
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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