Brand New Authentic Tudor Black Bay 31 Blue Diamond Dial Steel Women's Watch Model M79600-0005. Brushed and Polished Steel case with Brushed and Polished Stainless Steel watch band. Folding clasp. Dial description: Silver tone hands and Diamond/Index hour markers with minute markers around the outer rim on a Blue dial. Automatic movement. Powered by Tudor Calibre MT5201 (COSC) engine with 50 hours power reserve. Watch functions: Power Reserve, Hour, Minute, Second. Screw Down crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 31mm. 100 Meters - 330 Feet water resistant. 5 year WatchMaxx warranty. Also known as model: M796000005.