Explore the Tissot Seastar 1000 Quartz Chronograph, featuring a 45.5mm 316L stainless steel case, quick release interchangeable bracelet, and aluminum bezel ring. Equipped with a screw-down crown and case back, Swiss quartz movement, and scratch-resistant sapphire crystal with double-sided anti-reflective treatment. Water resistant up to 30 bar (300 m / 1000 ft). Reference: T120.417.11.421.00.