GOHUOS Men's Military Sport Silicone Band Chronograph Luminous Quartz Wrist Watch-Black Quartz movement with Analog display,and Chronograph function 3 workable sub-dials for chronograph minute,chronograph second,24 hours function Luminous Hands, knowing the time cleary at night. Water resistant to 30m(99 ft),not for swimming,diving, shower, etc. Mineral glass window, mineral glass helps resist scratches.