Tissot T120.417.11.051.00 Seastar 1000 Chronograph watch

Diver's chronograph with 30 bar water resistance

The Tissot Seastar 1000 Chronograph is a men's wristwatch built for serious watersports. Its 316L stainless steel case measures 45.5 mm across and 46.00 mm thick, topped with a sapphire crystal. A Swiss quartz movement powers the analog dial with dot markers and a date window, while a unidirectional ceramic bezel tracks elapsed time underwater.

Standalone timepiece requiring no external

The watch fastens with a stainless steel bracelet and deployment clasp, fitting directly on the wrist without tools or adapters. The screw-down crown and caseback seal the movement against water entry up to 300 m or 1000 ft. No charging, pairing or software setup is needed; the quartz calibre runs independently once the battery is installed.

Replaces basic sports watches lacking ISO-grade

Buyers moving up from fashion chronographs or entry-level dive models gain a certified 30 bar pressure rating and a screw-down crown system. The jump is worth it when regular swimming, snorkelling or recreational diving demands a case and crown proven at 300 m. It is not for buyers who need a smartwatch with notifications, GPS tracking or heart-rate monitoring.