Tissot Seastar 1000 T120.417.11.051.00 Men's Watch – 45.5mm Black Dial Stainless Steel Review, Prices & Score
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Where to buy the Tissot T120.417.11.051.00 dive watch
🏆 Review & price summary
The Tissot T120.417.11.051.00 Seastar 1000 combines a large 45.5mm stainless steel case with 300m water resistance, a unidirectional bezel and a secure bracelet clasp with diver extension. Its quartz movement, sapphire crystal and luminous hands make it practical for everyday wear, while the chronograph adds stopwatch functionality.
✓ Key strengths
- ✓ 300m water resistance and a unidirectional rotating bezel support serious water-focused use
- ✓ Strong scratch resistance and dial clarity
- ✓ Practical everyday timekeeping
- ✓ Safety and diver-extension features
- ✓ Chronograph, date and luminous hands add useful functionality
Key Specifications
- Bezel
- Unidirectional rotating bezel with black aluminium ring
- Weight
- 180g
- Calibre
- ETA G10.212
- Crystal
- Sapphire crystal with double-sided anti-reflective coating
- Bracelet
- Stainless steel bracelet with folding clasp, safety and diver extension
- Movement
- Quartz
- Functions
- Chronograph, date, EOL, ADD and SPLIT
- Lug width
- 22mm
- Case diameter
- 45.5mm
- Case material
- Stainless steel
- Case thickness
- 12.8mm
- Water resistance
- 300m (30 ATM)
- Manufacturer product code
- T120.417.11.051.00
Who Should Buy It?
- ✓ A strong fit for buyers who prefer a large, substantial 45.5mm watch.
- ✓ Suitable for those prioritising high water resistance and a diver-style design.
- ✓ A good choice for shoppers wanting chronograph timing functions without a mechanical movement.
- ✓ The stainless steel bracelet and silver case suit everyday use as well as outdoor wear.
Design and build
The Seastar 1000 has a sizeable 45.5mm round stainless steel case with a silver finish, black dial and matching stainless steel bracelet. At 180g, it has a deliberately substantial presence on the wrist.
A sapphire crystal with double-sided anti-reflective coating protects the dial, while the 12.8mm case thickness and 22mm lug width reinforce its robust proportions.
Water resistance and wearability
With 300m (30 ATM) water resistance, the watch is designed around demanding water-focused use. Its unidirectional rotating bezel has a black aluminium ring, and the folding clasp includes both a safety mechanism and diver extension.
The large case and weight will appeal to buyers who like a solid tool-watch feel, but they may be less comfortable for anyone seeking a compact or lightweight option.
Functions and timekeeping
The ETA G10.212 quartz movement supports dependable everyday timekeeping and includes an end-of-life battery indicator. The chronograph provides 30-minute and 1/10-second counters with a central 60-second hand, alongside date, ADD and SPLIT functions.
Super-LumiNova luminous hands and indexes are intended to improve visibility in darker conditions, adding practicality to the black dial.
Research note: this BestBuysUK assessment is based on the manufacturer's published specifications and other reputable technical sources. Specifications and retailer availability can change, so verify critical details before purchase.