Brand New Authentic Tudor Heritage Black Bay Dark Automatic Leather Strap Men's Watch Model M79230DK-0004. Black PVD-treated steel case with Aged black leather strap. Tang clasp. Unidirectional rotatable steel bezel in black PVD-treated steel with matt black anodised aluminium disc bezel. Black dial. Automatic Self Winding movement. Powered by MT5602, Manufacture TUDOR (COSC) engine with 70 hours power reserve. Screw down crown. Scratch Resistant Sapphire crystal. Case size: 41mm. Solid case back. 100 Meters - 330 Feet water resistant. 5 year WatchMaxx warranty. Also known as model: M79230DK-0007, 79230DK/CUIR, M79230DK-0003, 79230DK-BKLS,79230DK-0004, M79230DK-0007.