TISSOT T120.417.11.091.01 belongs to the T-Sport Seastar 1000 family, engineered for diving and water sports with robust Swiss engineering. Its 45.5 mm round 316L stainless-steel case is approximately 12.8 mm thick, housing a bold green gradient dial with applied indexes and luminescent hands for clear underwater readability.

Powered by the Swiss ETA G10.212 quartz chronograph movement, this model delivers accurate timekeeping, a central 60-second chronograph hand, a 30-minute counter, and 1/10-second timing, plus an end-of-life battery indicator. A date window between 4 and 5 o’clock adds daily practicality, while the scratch-resistant sapphire crystal with double-sided anti-reflective coating protects against glare and impacts.

Designed for divers, the watch features an anti-clockwise rotating aluminum bezel with a 0–60 dive scale, a screw-down crown and pushers, and a solid screw-on caseback. With 30 bar (300 m) water resistance, a folding clasp with safety lock and diver extension, and a quick-release interchangeable bracelet, the T120.417.11.091.01 is a high-performance, versatile dive chronograph