Tissot Seastar 1000 T120.410.11.041.00 review
A Swiss diver at a fair price.
- Skip it if
- You want a watch that never needs a battery
as of 6 Nov 2026, 13:25 GMT · Details
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Researched, not used. We haven't used this product. This review is built from the maker's details and what other buyers report.
What we like
- 40 mm quartz diver with blue dial
- Sapphire crystal and serious water resistance
- Swiss quartz movement needs little care
Worth knowing
- Quartz lacks mechanical diver appeal
- Bracelet is a touch plain
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Our review
The Tissot Seastar 1000 T120.410.11.041.00 is a 40 mm quartz diver with a blue dial and a steel bracelet. It combines a Swiss quartz movement with serious water resistance and a sapphire crystal. It is a robust, good-looking watch that needs little care. The catch is that quartz lacks the appeal of a mechanical diver, and the bracelet is a touch plain.
What it is
The Seastar is Tissot's long-running dive watch line, and the Seastar 1000 is the current generation. This reference, T120.410.11.041.00, is the 40 mm quartz model with a blue dial and a steel bracelet. It sits in Tissot's sports line-up alongside the Seastar 1000 Powermatic 80 automatics. Tissot belongs to the Swatch Group, and these watches are Swiss made.
The look is classic diver: a rotating bezel, bold hour markers and a dial that stays readable underwater.
The movement
Inside is a Swiss quartz movement, powered by a battery. It is more accurate than a mechanical diver, usually within a few seconds a month, and needs no winding. Expect a battery change every few years, and for a dive watch it is sensible to have a jeweller do this so the seals are pressure-tested afterwards. We have not named an exact calibre; check the listing for details.
If you want a mechanical movement in a Seastar, Tissot offers the Seastar 1000 Powermatic 80 in the same case family.
On the wrist
At 40 mm the case is a comfortable, modern size that suits most wrists and wears neither too small nor too big. Quartz divers tend to be thinner than automatic ones, which helps under a cuff. The bracelet is steel with a folding clasp, and the maker's figures for thickness and lug-to-lug should be checked on the listing.
The bezel turns in one direction only, which is a safety feature on dive watches, and it should click firmly. A one-way bezel is a useful reminder that this is a proper tool watch as well as a fashion piece.
Water and everyday wear
The Seastar 1000 is rated to 300 m, which comfortably covers swimming, snorkelling and recreational diving. It has a screw-down crown to keep water out, and the crystal is sapphire, which resists scratching. That level of protection is unusual in a quartz watch at this level, and makes it a good everyday watch as well as a dive companion.
The hands and markers carry lume for use in the dark. Always check the seals after a battery change and avoid operating the bezel or crown underwater.
Against the alternatives
For a quartz diver at a similar level, the Citizen Promaster Diver BN0150-28E is a solar alternative with 200 m resistance and no battery changes, and the Rotary Seamatic 300m is a lower-cost rival. If you would prefer an automatic, the Orient Kamasu RA-AA0002L19B is a mechanical diver with a loyal following.
The Seastar 1000 stands out for its Swiss build, its sapphire crystal and its 300 m rating in a quartz watch.
Who it's for, and who should skip it
It is a good choice for swimmers and holidaymakers who want a watch that can stand up to the sea without fuss. It suits someone who wants a Swiss name and a simple ownership experience.
Skip it if you want a mechanical movement, a solar watch that needs no battery, or a smaller case. The honest drawback is that the battery will need replacing and the plain bracelet lacks the finesse of the dial.
A researched review, built from the maker's specs, manual and Amazon.co.uk listing; facts checked 6 Nov 2026.
Who shouldn't buy this
Don't buy it if you want a watch that never needs a battery.
Key specs
| Movement | quartz |
| Calibre | — |
| Case | 40 mm |
| Thickness | — |
| Lug width | — |
| Water resistance | 300 m |
| Crystal | sapphire |
| Strap | — |
| Power reserve | — |
| Accuracy | — |
This is a Researched review: we haven't used this product. We check the maker's details against at least two independent sources, re-check the price where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
as of 6 Nov 2026, 13:25 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
as of 6 Nov 2026, 13:25 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.