Brand New Authentic Omega Speedmaster First Omega in Space Blue Dial Steel Men's Fashion Watch Model 310.30.40.50.06.001. Brushed and Polished Stainless Steel case with Brushed and Polished Stainless Steel Bracelet watch band. Brushed and Polished Stainless Steel Deployment with Push Button clasp. Fixed. Tachymeter Scale bezel. Dial description: Luminous Silver Tone Hands and Stick Hour Markers with Minute Markers Around the Outer Rim and 3 Sub-dials on a Blue-Grey Dial. Swiss Manual Winding movement. Chronograph sub-dials display: Seconds, 30 Minute, 12 Hours. Powered by Omega Calibre 3861 engine with 50 hours power reserve. Watch functions: Power Reserve, Hour, Minute, Second, Chronograph, Speed. Push-Pull crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 39.7mm. Case thickness: 13.4mm. Solid case back. 50 Meters - 165 Feet water resistant. 5 year WatchMaxx warranty. Also known as model: 31030405006001.