This Tissot Seastar 1000 dive watch has a case with a diameter of 43mm, which is water resistant up to 300 meters (or 1000 feet, which explains the name). Inside ticks a 'Powermatic 80' self-winding movement with a power reserve of 80 hours. As pictured the Seaster 1000 has a black dial and an equally black fabric strap.
Seastar 1000 Powermatic 80 43 Stainless Steel / Black / Fabric
Powering various Swatch Group brands as 'Powermatic 80'. Version pictured is Tissot-branded. It is based off the 2824-2. Can be chronometer-certified. Within the Powermatic family of movement's there are -thus far- three different levels; C07.1XX; these have a synthetic escapement. C07.6XX; these have a regular escapement. C07.8XX; these have a silicon hair spring.