Brand New Authentic Hamilton Khaki Navy Frogman Automatic 41mm Black Dial Rubber Strap Men's Fashion Watch Model H77455331. Brushed and Polished Stainless Steel case with Green Rubber Strap . Brushed and Polished Stainless Steel Tang clasp. Rotating bezel. Dial description: Luminous Silver Tone Hands and Stick/Arabic Numeral Hour Markers with Minute Markers Around the Outer Rim on a Black Dial. Swiss Automatic movement. Powered by Hamilton Calibre H-10 engine with 80 hours power reserve. Watch functions: Power Reserve, Hour, Minute, Second. Screw Down crown. Scratch Resistant Sapphire crystal. Unique case shape. Case size: 41mm. Case thickness: 13mm. Solid case back. 300 Meters - 990 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: 77455331.