Discover the Tissot Sidereal S Powermatic 80, featuring a 41mm case, quick release interchangeable bracelet, and up to 80 hours of power reserve. Equipped with a transparent background, screw-down crown and case back, and Swiss automatic movement. Protected by a scratch-resistant domed sapphire crystal with anti-reflective treatment and water resistant up to 30 bar (300 m / 1000 ft). Reference: T145.407.97.057.01.