Luminox F-117 NIGHTHA WK 6400 SERIES pilots watch requested by, developed for and supplied to F-117 Nighthawk U.S. Air Force pilots. Swiss quartz watch by Luminox. Grey case with kevlar strap. Sapphire crystal, 200 meters water resistant, black unidirectional rotating 0-24 bezel. Black dial with second time-zone hand, micro gas lights on hour markers and all hands.