Tissot Seastar 1000 Powermatic 80 Automatic Men’s Watch
Quick Facts About Tissot Seastar 1000 Powermatic 80 Automatic Men's Watch
- A Swiss automatic dive watch built around the Tissot Powermatic 80 movement, which delivers an 80-hour power reserve.
- Tissot rates the Seastar 1000 to 30 bar, which is 300 m or 1000 ft, well beyond recreational diving depths.
- The blue dial reads cleanly underwater, where contrast and clarity matter more than on land.
- An automatic movement means no battery to replace, and the watch winds itself through normal wear.
- The 80-hour reserve carries you through a long dive trip or a weekend without wearing it and still keeps accurate time.
- Wears as easily on the boat as at dinner, so it does not need to come off between dives.
- A well-matched choice for recreational divers who want reliable Swiss watchmaking on the wrist alongside their dive computer, not instead of it.
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Tissot Seastar 1000 Powermatic 80 – An Automatic Dive Watch for the Recreational Diver Who Wants Swiss Credentials
The Tissot Seastar 1000 Powermatic 80 is an automatic mechanical dive watch built for men who want a serious, Swiss-made timepiece they can actually wear in the water.
If you dive recreationally and want a watch that works as hard on the wrist as it does on a dinner table, this is the kind of piece worth understanding before you buy.
What “Automatic” Means for You
An automatic movement winds itself using the natural motion of your wrist. There is no battery to replace and no manual winding required during regular wear.
The Powermatic 80 movement is a Tissot-specific caliber with an 80-hour power reserve. That means if you take the watch off on a Friday evening, it will still be running Monday morning. Most standard automatic movements give you around 40 hours, so this is a genuine practical advantage if you do not wear the watch every single day.
The Dial
The dial on this reference is blue, paired with a matching or contrasting bezel depending on the configuration. Blue dials sit in a long tradition of dive watch design and read clearly against a rotating bezel in most light conditions.
Before You Buy
This listing names the core identity of the watch: Tissot, Seastar 1000 family, Powermatic 80 movement, blue dial, men’s sizing, reference T120.407.37.041.00.
Tissot rates the Seastar 1000 to 30 bar, which is 300 m or 1000 ft. Case diameter, case material, bracelet type, crystal material and lug width vary across the Seastar 1000 line, so check them against Tissot’s specification sheet for this exact reference.
For a dive watch, those details matter. Before purchasing, look up the confirmed specification sheet directly from Tissot or a verified retailer so you know exactly what you are getting on your wrist and in the water.
Who This Watch Is Likely For
The Seastar 1000 line sits in Tissot’s sport and diving category. The Powermatic 80 variant is aimed at the recreational diver or water-sport enthusiast who wants:
- Swiss automatic movement with longer-than-average power reserve
- A recognizable dive-watch aesthetic with a blue dial
- A timepiece that transitions naturally from the boat to everyday wear
Who Should Look Elsewhere
If you need a watch primarily as a bottom-timer for serious diving, a dedicated dive computer worn alongside this watch will do that job more reliably and with more safety data.
If case size is what drives your decision, check it against Tissot’s sheet for this reference before committing.
The Tissot Seastar 1000 Powermatic 80 has a strong reputation in its category. Just make sure the confirmed specs match your actual use before you buy.
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How DIVEIN tests: every product in our buying guides is evaluated by our dive-certified team in real conditions, across multiple dives at varying depths. We buy or borrow gear independently so our recommendations are never pay-to-win.