Discover the Tissot Seastar 1000 Chronograph, featuring a 45.5mm diameter, 316L stainless steel case, aluminum bezel ring, screw-down crown and case back, Swiss quartz movement, scratch-resistant sapphire crystal with double-sided anti-reflective treatment, and water resistance up to 30 bar (300m/1000ft). Reference: T120.417.17.041.00