Aviator Pro GMT Military Style Watch Analog / Digital Time and Date Dual Time GMT Plus Chrono and Weather Fly-Back Motion analog chrono hands - Press Top Index to Zoom IN / OUT - Press Center to Hide Watch Hands - Press 1030 position toggle digital vs analog mode - Press 830 position to Toggle Digital 24 Hour GMT ZULU and Local Digital Time - Press 130 position to change color - Press START/STOP and RESET Buttons to activate Stopwatch - Press 330 position to Toggle through Temp, Wind, Sunrise, Sunset - Press date window to show digital full date - Press Battery icon to Toggle digital Battery Level for Watch/Phone