Luminox Gents Black Dial Black PU Strap F117 Nighthawk Series Watch A6401. This versatile timepiece features a 316L steel PVD black, rotating, at 12h 1x green LLT protected by metalized sapphire glass window bezel, sapphire glass with single anti-reflecive coating and date window. It also boasts a PVD black screw crown and has a steel PVD black case. A durable black 23mm PU (polyurethane) strap completes the look. It is water resistant up to 200 meters / 20 ATM.