Tissot model
Tissot Seastar: history, models and official videos
The Tissot Seastar is Tissot's water-resistant watch family, with a name registered in 1952 and modern divers rated to 300 and 600 meters. This page explains its main lines and what influences the value of a Seastar, and shows the official Tissot videos about it.
- Name registered
- 13 December 1952
- First catalogue
- 1954
- Movement today
- Powermatic 80 (80 hours) or quartz
- Water resistance
- 300 m (Seastar 1000), 600 m (Seastar 2000 Professional)
Where the Seastar name comes from
Tissot registered the name Seastar on 13 December 1952, and the collection first appeared in the company's catalogue in 1954. It grew out of Tissot's earlier Five Star series and was aimed at water-resistant watches for outdoor use. Early Seastars looked like dress watches rather than dive watches. In the 1960s the Seastar Seven added a reinforced crystal and a one-piece case. The name then largely disappeared from the range between the 1980s and 2000 before coming back in the 2000s.
The main Seastar generations
Seastar is a family, not a single watch, so the case size and movement depend on the era. The table shows the main lines that are documented.
| Series | Years | References | Case | Movement |
|---|---|---|---|---|
| Early Seastar | 1950s – 1960s | – | Dress-watch look; Seastar Seven with one-piece case | – |
| Sideral S | 1972 | 44 730 | – | – |
| Seastar 1000 Automatic Chronograph | 2011 | – | 48 mm (later versions 43 mm), 300 m | ETA C01.211, 45 h; later Powermatic 80 |
| Seastar 1000 Professional | 2018 | – | 300 m | – |
| Seastar 1000 Powermatic 80 | 2020s | – | 40 mm, sapphire crystal, 300 m | Powermatic 80, about 80 h |
| Seastar 2000 Professional | 2021 | T120.607.x | 46 mm (predecessor 43 mm), 600 m, helium valve | Powermatic 80 (ETA C07.111), 80 h |
The Powermatic 80 is a Swiss-made automatic movement derived from the ETA 2824. It beats at 3 Hz instead of 4 Hz and offers a power reserve of about 80 hours. Quartz Seastars also remain in the catalogue, for example a 40 mm quartz model.
Notable versions and technique
The 1972 Sideral S (ref. 44 730) is described as the first Seastar-line sports model with a diver's bezel. Of the modern watches, the Seastar 1000 is rated to 300 meters. The Seastar 2000 Professional is rated to 600 meters, tested to ISO 6425, and has a helium escape valve at 9 o'clock. Because the line has been sold in many sizes, the reference number on the caseback is the surest way to tell which version you have.
What is a Tissot Seastar worth?
Tissot is a Swatch Group brand in the entry to mid-price segment, and most Seastars are not collector pieces. Value depends on the generation, the movement (quartz or automatic), the condition, the bracelet and whether box and papers are present. Recent models are priced as everyday watches; for example, the Seastar 2000 Professional was listed at EUR 1,030 when it launched. Early 1950s to 1970s Seastars are bought mainly for their vintage look, and condition and originality of the dial matter most. We found no documented auction records for the Seastar, so we do not quote any.
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Official Tissot Seastar videos
All videos come from the official Tissot YouTube channel. They show the Seastar 40 mm quartz, the Seastar 1000 Chrono and the Seastar 2000 Professional Powermatic 80.
TISSOT | Seastar 40mm Quartz - Broaden Your Horizons, It's Time To Sea2023-05-02
TISSOT | Seastar 2000 Professional Powermatic 802021-06-17
TISSOT | Seastar 1000 Chrono2021-05-11
More Tissot videos, sorted by model: all official Tissot playlists.
Sources (5)
SwissWatchExperts is not affiliated with Tissot. Brand and model names are trademarks of their owners; the videos are embedded from the official Tissot YouTube channel.
Frequently asked questions
When was the Tissot Seastar introduced?
Tissot registered the Seastar name on 13 December 1952, and the collection first appeared in the Tissot catalogue in 1954.
How water resistant is a Tissot Seastar?
It depends on the model. The Seastar 1000 is rated to 300 meters and the Seastar 2000 Professional to 600 meters, while early Seastars were made for everyday water resistance.
What movement is in a Seastar?
Current automatic Seastars use the Powermatic 80, derived from the ETA 2824, with about 80 hours of power reserve. The line also includes quartz models, and the 2011 chronograph used the ETA C01.211.
How big is a Tissot Seastar?
Sizes vary by model. The Seastar 1000 Powermatic 80 measures 40 mm, the Seastar 2000 Professional 46 mm, and the 2011 chronograph 48 mm.
How can I tell which Seastar I have?
Check the reference number on the caseback and compare dial, bezel and movement. Quartz and Powermatic 80 versions can look similar, so the reference is the reliable guide.
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