The quick answer.
Tissot Seastar 1000 Chronograph Green is a 45.5 mm dive chronograph watch at $722.95. We recommend it for a buyer who wants a large green-dial quartz chronograph with a Tissot-rated 300 m case and sapphire crystal.
Why it belongs on the shortlist.
The Seastar combines a green gradient dial and black rotating bezel with a three-register chronograph. It is an assertive, function-first design: choose it for the timing controls and water rating, not for a thin or understated everyday watch.
A green dial that suits the Seastar’s instrument look.
Tissot describes this dial as a deep green gradient with a black bezel. The contrast gives the large case a more distinctive look than an all-black diver, while the three chronograph registers make the face busier. We would choose it when timing functions matter and the color is part of the draw; buyers who prefer a quiet, versatile dial may be happier with the standard Seastar three-hander.
The chronograph covers everyday interval timing.
Tissot lists a PowerDrive quartz chronograph with 30-minute and 1/10-second counters, a central 60-second hand and ADD/SPLIT functions. The movement also has a date and an end-of-life indicator. This adds useful controls without the winding routine of a mechanical chronograph, though the extra subdials and pushers are a less restrained look.
Check the full footprint, not just the case width.
Tissot lists a 45.5 mm case, 12.82 mm thickness, 22 mm lug width and 180 g weight. The steel bracelet contributes to that substantial feel. Compare the width and weight with a watch you already enjoy before choosing it; Tissot does not publish a separate lug-to-lug measurement for this reference. The bracelet has a diver extension and quick release.
Compare the seller total and warranty before buying.
On October 28, Tissot listed this reference at $675 USD and Watches of America listed the exact variant at $722.95. Watches of America supplies SEBASTIANBASSOL at 10%, but this reference has not been cart-tested, so there is no verified after-code price. Compare the final total at checkout with Tissot’s direct listing, and review the retailer warranty terms before choosing the partner route.
The details, at a glance.
- Reference
- T120.417.11.091.01
- Case diameter
- 45.5 mm
- Lug-to-lug
- Not published by the brand
- Thickness
- 12.82 mm
- Lug width
- 22 mm
- Case
- 316L stainless steel
- Crystal
- Sapphire with double antireflective coating on both sides
- Movement
- Tissot PowerDrive quartz chronograph
- Listed functions
- 30-minute and 1/10-second chronograph counters; central 60-second hand; ADD/SPLIT timing; date; end-of-life indicator
- Weight
- 180 g
- Water resistance
- 30 bar / 300 m, with screw-down crown and push-buttons
- Strap / bracelet
- Stainless-steel bracelet with safety-lock folding clasp, diver extension and quick-release
What draws us in
- Tissot-rated 300 m water resistance with a screw-down crown and caseback
- Quartz chronograph with 30-minute and 1/10-second counters, ADD/SPLIT timing and date
- Green gradient dial, sapphire crystal and quick-release steel bracelet
Before you choose
At 45.5 mm across, 12.82 mm thick and 180 g, this is one of the larger, heavier watches in the Seastar range. Its chronograph adds two push-buttons and more dial detail. The supplied Watches of America code is not confirmed for this exact reference, and the retailer listing is currently higher than Tissot’s direct price.
Who it suits.
A buyer who wants a large green-dial quartz chronograph with a Tissot-rated 300 m case and sapphire crystal.
When to choose something else.
Choose a smaller three-hand diver if you want a simpler dial and less weight, or a mechanical chronograph if the movement itself is part of the appeal. The 40 mm Seastar Quartz Black is the more compact option in the same family.
Warranty, returns and ownership.
Watches of America lists a one-year retailer warranty and a 30-day return window on eligible items; conditions and a restocking fee may apply. Tissot’s own warranty is described for purchases through its boutiques and authorized retailers, and the listing does not say whether it carries over here, so ask Watches of America to confirm in writing if manufacturer coverage matters to you. Shipping is listed as one to three business days with free shipping available.
Closest alternatives.
- Tissot Seastar 1000 Quartz Black: The same 300 m Seastar purpose in a smaller 40 mm case, with a simpler quartz time-and-date display.
- Tissot PRC 200 Chronograph Blue: A Swiss quartz chronograph with a 200 m rating if the Seastar’s 45.5 mm case feels too large.
- Citizen Promaster Dive Eco-Drive Light Blue: A light-powered 200 m diver if you want simpler ownership and do not need a chronograph.
Think beyond the diameter.
The brand does not publish lug-to-lug for this reference, so use the case width, thickness and strap length to judge fit. Use our wrist-fit guide and compare the proportions with a watch you already enjoy wearing.
Watches of America partner code and offer terms. Our supplied code is SEBASTIANBASSOL for 10% off. Check the exact model and variant at the store, then confirm eligibility and the final total at checkout.
Where to buy.
Specifications and product photography: Tissot product page (checked October 28, 2026). Find Seastar 1000 Chronograph Green at Watches of America through our partner link and search for the selected option there. How we choose.
A few good questions.
What is the discount code for the Tissot Seastar 1000 Chronograph Green?
The Watches of America discount code is SEBASTIANBASSOL for 10% off at watchesofamerica.com. We have not tested it on this exact model, so confirm the saving in your order summary. Every code and tested price: https://watchritual.com/promo/watches-of-america
What functions does the Tissot Seastar 1000 Chronograph Green (T120.417.11.091.01) have?
Tissot lists a PowerDrive quartz chronograph with 30-minute and 1/10-second counters, a central 60-second hand, ADD/SPLIT timing, a date and an end-of-life indicator.
How water resistant is the Tissot Seastar 1000 Chronograph Green (T120.417.11.091.01)?
Tissot rates it to 30 bar / 300 m and lists a screw-down crown and caseback. This is the manufacturer’s specification, not an independent pressure test.
What size is the Tissot Seastar 1000 Chronograph Green (T120.417.11.091.01)?
Tissot lists a 45.5 mm case width and length, 12.82 mm thickness and 22 mm lug width. Its published weight is 180 g.
Is the Tissot Seastar 1000 Chronograph Green (T120.417.11.091.01) cheaper at Watches of America?
Not at the listed prices checked on October 28, 2026: Watches of America listed $722.95 USD and Tissot listed $675 USD. The supplied SEBASTIANBASSOL code has not been tested on this exact reference, so compare the final total and warranty before buying.
