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Tissot PRX Powermatic 80 35mm Unisex Watch Green
Ref. T1372071109100
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Stepping up in the same dial colour
The PRX line traces back to a 1978 Tissot Seastar, revived in 2021 and expanded in 2023 to include this 35mm case — sized specifically for wrists that found the 40mm too commanding, and carrying the waffle-pattern dial that only appears on the automatic version of the family. The raised grid texture on the green dial is central to what the watch is. It gives the surface depth that shifts with the angle of light in a way a flat lacquer cannot, and it explains why buyers seeking the 35mm consistently specified the automatic over the quartz sibling. The integrated bracelet keeps the proportions flush to the wrist, though the first link does not fully articulate, which means the watch sits and wears slightly larger than 35mm implies — closer to a vintage 36mm in feel. The movement deserves mention beyond its 80-hour reserve. The Nivachron hairspring is a titanium alloy developed to resist the magnetic fields that standard springs accumulate from phones, laptops and airport security — a practical specification for a watch worn daily and not babied. The exhibition caseback lets you confirm the rotor is working; the sapphire is reserved for the dial side, where it matters more.
- Reference
- T1372071109100
- Brand
- Tissot
- Collection
- PRX
- Case size
- 35mm
- Case thickness
- 10.9mm
- Lug width
- 12mm
- Case material
- Stainless steel
- Case shape
- Tonneau
- Dial
- Green
- 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
- Goldsmiths
Additional specifications
- Lug-to-lug
- 44.9mm
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), Green Dial Watches (392) and Tonneau & Cushion Watches (119).
Temporarily out of stock
Goldsmiths is not currently taking orders for this reference. Last listed as available on 26 September 2026. Stock is checked nightly and this page updates when it returns.
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
- 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 | T1372071109100 | 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 | — |
| This watch |
|
|
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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 comparedWhat size strap does it take?
12mm. 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.
Will it fit my wrist?
Lug-to-lug is 44.9mm, which suits wrists from roughly 16cm (6¼ 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.
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