Brand New Authentic Omega Seamaster Planet Ocean 600M 43.5mm Black Dial Steel Men's Watch Model 215.30.44.21.01.001. Stainless Steel case with Stainless Steel watch band. Folding clasp. Uni-Directional bezel. Dial description: Black with Date Display dial. Black dial. Automatic, Calibre 8900, 60 Hour Power Reserve movement. Screw Down crown. Scratch Resistant Sapphire crystal. Case size: 44mm. Transparent case back. 600 Meters - 2000 Feet water resistant. 5 year WatchMaxx warranty. Also known as model: 21530442101001, 215-30-44-21-01-001, O21530442101001.