Seastar 2000

The Tissot Seastar 2000 is a standout in Tissot’s dive watch lineup, engineered for serious underwater performance and everyday versatility. Launched as an evolution of the Seastar range, this model is prized for its professional-grade 600-meter water resistance and helium escape valve—features rarely found at this price point. Its bold 46mm case and intricate wave-pattern dial make it a conversation piece, while the Swiss pedigree ensures reliability and precision.

Reference numbers like T120.607 designate the Seastar 2000 Professional series, which houses the Powermatic 80 automatic movement. This caliber offers an impressive 80-hour power reserve, a sapphire crystal, and a ceramic bezel insert for enhanced scratch resistance. Variants differ mainly in dial color, bezel style, and strap options, with the blue gradient dial and rubber strap versions commanding slightly higher prices due to demand.

Prices fluctuate based on condition, full set status (box and papers), and bracelet versus strap configurations. The Seastar 2000 is not known for rampant aftermarket modification or counterfeiting, but collectors value original parts, especially the signed clasp and unpolished case lines. When comparing options, look for crisp bezel action and check that the helium valve operates smoothly—these details impact both wearability and long-term value.