The Tissot Seastar 1000 Chronograph (T1204171105101) is a sporty dive watch with a black dial, 300m water resistance, and chronograph functions. It features a Swiss quartz movement, a durable stainless steel case and bracelet, and an interchangeable quick-release bracelet with a folding clasp for secure wear. The scratch-resistant sapphire crystal and screw-down crown ensure underwater performance, while luminous hands and markers enhance visibility.