Module No. 5455

Auto Time Calibration Signal Receive

An automatic time calibration signal receive operation is performed and the time and day settings are adjusted between midnight and 5:00 a.m. Once a signal receive operation is successful, no more auto receive operations are performed that day.

The receive operation is performed only while the watch is in the Timekeeping Mode (normal timekeeping).

  • Normally the mode hand points to the current day of the week.

Reference Navigating Between Modes


Place the watch near a window or some other location appropriate for signal reception.

  • The second hand points to [RC] while time calibration reception in progress.
  • When the receive operation is successful, the time and day settings will be adjusted automatically.