... , it will reveal RETRY. Alarm: in the alarm mode, press[UP] to open/close alarm, press [RESET] to open/close hour ... time. Stopwatch/ chronograph Exercise time/ Training zone: press[UP] to start exercise time, press[UP] to stop exercise time. When stop exercise time, press[RESET] to ... after 5 minutes if no button is pressed. If start exercise time, then it won’t auto return to clock mode ...