Brand New Authentic Omega Seamaster Railmaster Automatic Master Chronometer Black Dial Steel Men's Watch Model 220.10.40.20.01.001. Stainless Steel Brushed and Polished case with Silver Stainless Steel Brushed watch band. Deployment clasp. Fixed bezel. Dial description: Silver tone luminous hands and Index /Arabic Numeral hour markers on a Grey/Black dial. Automatic Self Winding movement. Powered by Omega Caliber 8800 engine with 55 hours power reserve. Watch functions: Hour, Minute, Second. Screw in crown. Scratch Resistant Sapphire crystal. Case size: 40mm. 100 Meters - 330 Feet water resistant. 5 year WatchMaxx warranty. Also known as model: 22010402001001.