Aviator Combat Watch Analog / Digital Time and Date Dual Time GMT Plus Chrono and Weather - Press Top Index to Zoom IN / OUT - Press Center to Hide Watch Hands - Press TIME to Toggle Digital 24 Hour GMT ZULU and Local Digital Time - Press START/STOP and RESET Buttons to activate Digital Stopwatch - Press DATA to Toggle through Temp, Wind, Sunrise, Sunset - Press Battery icon to Toggle digital Battery Level for Watch/Phone