Brand New Authentic Omega Constellation Co-Axial Master Chronometer Grey Dial Stainless Steel Men's Watch Model 131.10.39.20.06.001. Stainless Steel case with Brushed and Polished Stainless Steel watch band. Deployment with Push Button and Foldover clasp. Fixed bezel. Dial description: Rose Gold tone hands and Index hour markers with minute markers around the outer rim on a Grey dial. Automatic Chronometer movement. Powered by Omega Calibre 8800 engine with 55 hours power reserve. Watch functions: Date, Power Reserve, Hour, Minute, Second. Scratch Resistant Sapphire crystal. Round case shape. Case size: 39mm. Transparent case back. 50 Meters - 165 Feet water resistant. 5 year WatchMaxx warranty. Also known as model: 13110392006001.