Module No. 5678

Calibrating Barometric Pressure Readings (Offset)

The watch’s pressure sensor is adjusted at the factory and normally does not require calibration. However, you can calibrate the displayed value if you notice major errors in readings.


The watch will not be able to produce correct barometric pressure readings if you make a mistake during the calibration procedure. Check to make sure that the value you use for calibration produces correct pressure readings.

  1. Enter the Barometer Mode.

  2. Pull out the crown.

  3. This displays the current barometric pressure and enters the Barometric Pressure Offset Mode.

  4. Rotate the crown to change the value.

  5. Setting range: 260 to 1,100 hPa (or 7.65 inHg to 32.45 inHg)

    Setting unit: 1 hPa (or 0.05 inHg)

    To return the barometric pressure setting to its initial factory default, press (A) and (C) at the same time.

  6. Push the crown back in to complete the setting operation.


If you do not perform any operation for about two minutes after pulling out the crown, crown operations will automatically become disabled. If that happens, push the crown back in and then pull it out again.