This authentic Tudor Black Bay 41 features a brushed and polished stainless steel case, black dial, yellow gold-tone luminous hands, Circle/Index hour markers, minute markers, unidirectional rotating bezel, automatic self-winding Calibre MT5612 (COSC) movement with 70-hour power reserve, date function, second hand, screw-down crown, sapphire crystal resistant to scratches, and is water-resistant up to 200 meters. Crafted with a brown fabric strap.