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Tissot Seastar 43mm Mens Watch Green
Ref. T1204071109101
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 Seastar 1000 sits in Tissot's T-Sport line as a straightforward proposition: a diver built to rated depth with no collaborative gloss or anniversary story behind it. What it does have is the Powermatic 80, a calibre that sets it apart from most of its competition in ways the specification table cannot fully convey. That 80-hour power reserve means a watch left on the nightstand Friday evening will still be running accurately Monday morning — genuinely useful for someone who rotates between watches across a weekend. At 43mm and 12.7mm thick, it is trimmer through the case than the depth rating might suggest, and the exhibition caseback means that movement is on view from below. The green gradient dial shifts tone across its surface in a way that reads differently under direct light than it does in shade, and the unidirectional ceramic bezel gives a clean contrast against the steel. On the wrist, the brushed and polished bracelet sits well and the folding clasp incorporates a safety release — not incidental on a watch designed to go into the water.
- Reference
- T1204071109101
- Brand
- Tissot
- Collection
- Seastar
- Case size
- 43mm
- Case thickness
- 12.70mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Green
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- Powermatic 80
- Functions
- Date
- Water resistance
- 300m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Power reserve
- 80 hours
- Origin
- Swiss made
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 Seastar range (53), Stainless Steel Watches (2,833), Automatic Watches (1,417), Sports Watches (667), Dive Watches (486) and Green Dial Watches (392).
Manufacturer’s guarantee
Best of 2 retailers
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 300m water resistance, rated for actual diving
- Sapphire crystal, which resists scratching
- 80-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
- One of Tissot's more premium watches
Worth knowing
- 43mm sits at the larger end
Tissot Seastar alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | T1204071109101 | C0326071109100 | H82525160 |
|---|---|---|---|
| Price | £770 | £920 | £990 |
| Case size | 43mm | 43mm | 43mm |
| Water resistance | 300m | 300m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 80 hours | 80 hours | 80 hours |
| This watch |
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Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 300m it is rated for swimming, snorkelling and recreational 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.
Is it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Both Goldsmiths and Mappin & Webb list it at £770, so choose on delivery and warranty rather than price.
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