Discover the Tissot Seastar 1000 Powermatic 80, featuring a 43mm diameter, quick release interchangeable bracelet, up to 80 hours of power reserve, 316L stainless steel case, transparent background, screw-down crown and case back, ceramic bezel ring, Swiss automatic movement, scratch-resistant domed sapphire crystal, and water resistance up to 30 bar (300 m / 1000 ft). Reference: T120.407.11.081.01.