Zenith Class T Open, Reference: 03.0520.4021/01.C492, Stainless Steel on a Strap with a Stainless Steel Double-Foldover Buckle, Partially Skeletonized Automatic El Primero Movement, COSC, Chronograph Function with Minute Counter at 3, Small Seconds at 9, Power Reserve Indicator, Black Partially Skeletonized Dial With Applied Stick Markers and Numerals, Diameter: 44mm, Thickness: 16mm, Display Back, Sapphire Crystal, Water Resistant to 50 Meters, Brand new with box and papers