Seastar 1000 GMT 40mm T1208521705100

Combining all the elements you would expect in a sports watch, this model is a timepiece you can rely on – on, in or under the water. Impressive water-resistance up to a pressure of 30 bar (300m/1000 ft) is combined with the energy of a Swiss Made quartz movement. With a screw-down crown and case back and Superluminova ® ensuring it is readable in the dark, the Seastar 1000 Quartz GMT is an aquatic ace that truly has it all. The screw-down crown also offers additional protection against knocks. Ensuring visibility under all conditions is an important goal for Tissot. This is why some timepieces feature a material we call SuperLuminova®. This material is placed on visible parts such as dials and hands, where it functions as a miniature accumulator of reflected light when the watch finds itself in the dark*.

Source: Tissot website, last updated Mar 2026