Authentic Tudor Black Bay 36 model m79640-0004, featuring a brushed and polished stainless steel case and bracelet. The unique case shape has a smooth bezel and black diamond dial with luminous yellow gold tone hands and stick/minute markers around the outer rim. Powered by Swiss automatic chronometer movement (Tudor Calibre MT5400 COSC) offering 70 hours power reserve. Includes screw-down crown, sapphire crystal glass resistant to scratches, is water resistant to 100 meters / 330 feet, and comes with a 5-year WatchMaxx warranty.