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Tissot Seastar 1000 T120.417.11.051.00 Men's Watch – 45.5mm Black Dial Stainless Steel
Ref. T120.417.11.051.00
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Stepping up in the same colour and case shape
The Seastar 1000 is a purposeful dive-style chronograph built around a 45.5mm round stainless steel case, 12.8mm thick, with a unidirectional rotating bezel fitted with a black aluminium ring. The black dial carries luminous hands and indexes in Super-LumiNova, alongside 30-minute and 1/10-second chronograph counters, a central 60-second hand, and a date display. Sapphire crystal with double-sided anti-reflective coating sits above the dial. The stainless steel bracelet closes with a folding clasp incorporating a safety lock and diver extension, and the watch carries a 300m water resistance rating. At 180g, it sits with some weight on the wrist. The ETA G10.212 movement includes an end-of-life indicator, ADD, and SPLIT functions alongside the core chronograph.
- Reference
- T120.417.11.051.00
- Brand
- Tissot
- Collection
- Seastar
- Case size
- 45.5mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Black
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Quartz
- Calibre
- ETA G10.212
- Functions
- Chronograph, Date
- Water resistance
- 300m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Retailer
- Watch Enclave
Additional specifications
- 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 7 collections
This watch appears in the Tissot Seastar range (53), Stainless Steel Watches (3,148), Chronograph Watches (1,230), Watches 44mm and Over (844), Sports Watches (781), Dive Watches (554) and Watch Price Drops (311).
International shipping available
Best of 2 retailers
What the specifications mean
A watch built to be worn hard and got wet.
Strengths
- 300m water resistance, rated for actual diving
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Tissot's range as we list it
Worth knowing
- 45.5mm is a large watch with real presence
Price history
This watch is currently at its lowest recorded price. It reached £560 on 10 August. Prices are checked every day, and we record any changes.
Tissot Seastar 1000 T120.417.11.051.00 alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | T120.417.11.051.00 | 96B432 | 1514267 |
|---|---|---|---|
| Price | £399 | £379 | £349 |
| Case size | 45.5mm | 43mm | 44mm |
| Water resistance | 300m | 200m | — |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Silicone strap | — |
| This watch |
|
|
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?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Watch Enclave at £399, against £560 at Goldsmiths. Two UK retailers stock this reference.
Has the price changed recently?
It's currently at its lowest recorded price since we began tracking it. It's ranged between £399 and £560, today it's £399.
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