Brand New Authentic Omega Speedmaster Moonwatch Professional Chronograph Black Dial Stainless Steel Men's Luxury Watch Model 310.30.42.50.01.004. Brushed and Polished Stainless Steel case with Brushed and Polished Stainless Steel Bracelet watch band. Brushed and Polished Stainless Steel Folding clasp. Fixed. Tachymeter scale bezel. Dial description: Luminous Silver Tone Hands and Stick Hour Markers with Minute Markers Around the Outer Rim, 3 Sub-Dials on a Black dial. Swiss Manual Winding Chronograph movement. Chronograph sub-dials display: 30 Minute, 12 Hours, Small Seconds. Powered by Caliber Omega 3861 engine with 50 hours power reserve. Watch functions: Hour, Minute, Second, Power Reserve. Pull-Push crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 42mm. Case thickness: 13.55mm. See-Through Case Back. 50 Meters - 165 Feet water resistant. 5-year WatchMaxx warranty.