Tissot’s most capable dive watch just got smaller, sharper, and a touch more affordable. The 2026 Seastar 2000 Professional arrives in a 44mm case at $1,050, down from the 46mm version that ran $1,275.
Price: $1,050
Where to Buy: Tissot
This is the Seastar 2000 Tissot probably should’ve built first. The blue gradient T120.907.17.041.00 on a blue rubber strap keeps every spec that made the 46mm a stealth value: the Powermatic 80 automatic, the helium escape valve at 9 o’clock, a ceramic bezel insert, and full ISO 6425 certification at 600m. What changes is the wear, and that’s the part that actually matters once it’s on your wrist.
The headline change is the case. Tissot pulled diameter from 46mm to 44mm and trimmed thickness from 16.25mm to 15.29mm, per the spec sheet on Tissot’s product page. The brand also added a notch along the case edges that softens the silhouette. It’s still a chunky tool watch, but it’s no longer doing impressions of a hockey puck.
There are five new references in the launch. Blue and orange rubber straps anchor the lineup at $1,050, the stormy grey steel bracelet runs $1,100, and the two black-coated variants top out at $1,125 per Tissot’s US pricing. Monochrome lists the equivalent European tiers at EUR 975 for the rubber, EUR 995 for the bracelet, and EUR 1,025 for the black-coated references, with Tissot positioning these as the permanent Seastar 2000 Professional collection going forward.
The 600m dive cred is fully intact
None of the dive specs got watered down with the smaller case. The 44mm is still rated for 60 bar, still ISO 6425-certified to the 2018 standard, and still carries the helium escape valve at 9 o’clock.
That valve isn’t decoration. Tissot’s product news explains it allows accumulated helium to escape safely during saturation diving, when ambient pressure drops faster than the gas can vent through the gaskets. If you’re not doing commercial sat diving, you’ll never need it, but it’s the feature that separates a professional-grade diver from a recreational one.
The unidirectional bezel runs in 60-minute increments under a ceramic insert, which is scratch resistant in ways aluminum simply isn’t. The crystal is sapphire with antireflective coating on the underside, and Super-LumiNova handles the lume on the hands, hour markers, and bezel pip. Screw-down crown and screw-in caseback finish the formula. None of this is new, but all of it lining up at $1,050 still raises an eyebrow.
Powermatic 80 keeps doing the work
Inside is the Powermatic 80 automatic, a Swatch Group movement family that Tissot, Mido, and Certina all run under the Powermatic 80 name, and that Hamilton uses as its closely related H-10 caliber. It runs at 21,600 vph and stores 80 hours of reserve, which means you can take the watch off Friday night and pick it back up Tuesday morning without resetting the date. The patented Nivachron balance spring shrugs off magnetic interference from phones, laptops, and magnetic bag closures.
It isn’t a high-finish movement, and the seconds hand has a slightly stuttered sweep at six beats per second. For the money, that’s the right compromise.
Wearability, strap system, and the blue gradient look
The T120.907.17.041.00 ships on a 22mm blue HNBR rubber strap with a quick-release system, so swaps don’t need a tool. The dial is a blue gradient that pulls darker toward the rehaut, and Tissot’s strap library carries silicone, steel, and Milanese options if rubber isn’t your move. Weight on the strap version sits at 130 grams per the spec sheet.
At 44mm by 15.29mm thick, this is still a presence watch. It’ll wear best on wrists seven inches and up, and the rubber strap helps it sit a bit closer than the steel bracelet would. The shorter lug-to-lug is the unsung hero here. The 46mm version felt like a wrist-overhang risk on smaller wrists, and the 44mm should fix that for most people without giving up the diver aesthetic.
How it stacks up at $1,050
At this price the natural comparison set is the higher-tier Citizen Promaster Dive references, the larger Seiko Prospex automatic divers, and the Oris Aquis Date at roughly twice the money. The Tissot wins on water resistance against most of the field and matches the ceramic bezel of pricier options. It loses on movement finishing to the Oris and on Eco-Drive set-and-forget convenience against the entry-level Citizens, but neither gap is wide enough to nuke the value case.
The watch most enthusiasts will mention next to this one is the Omega Seamaster Planet Ocean 600M. That comparison is fun but unserious, because the 2026 Planet Ocean 600M retails around $8,000, roughly eight times the Tissot’s sticker, for the in-house co-axial caliber and Master Chronometer certification.
What’s good
The rarest combo at this price is still ISO 6425 dive certification paired with a helium escape valve at $1,050. The 44mm by 15.29mm dimensions wear noticeably better than the 46mm predecessor without surrendering the diver presence, and a ceramic bezel insert plus sapphire crystal on the same watch is usually a two-grand starting point. The Powermatic 80 with a Nivachron antimagnetic balance spring and 80-hour reserve covers a long weekend off the wrist, and the quick-release strap system with Tissot’s wide accessory catalog turns a silicone, steel, or Milanese swap into a one-minute job.
What’s not
It’s still a thick watch at 15.29mm, so flat cuffs and dress shirts aren’t really on the menu. The Powermatic 80 finishing is functional rather than decorative, and the 3Hz sweep looks a touch choppy next to higher-beat alternatives.
Price: $1,050
Where to Buy: Tissot
Where to buy
The Tissot Seastar 2000 44mm reference T120.907.17.041.00 is available now from Tissot’s US site at $1,050 on the blue HNBR rubber strap. The stormy grey steel bracelet runs $1,100 and the two black-coated variants top out at $1,125, both confirmed direct on Tissot’s US site. Monochrome lists the equivalent European pricing at EUR 995 for the bracelet and EUR 1,025 for the black-coated variants.
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(as of June 21, 2026 22:07 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
