SUUNTO AMBIT2 R User Guide - Manual (Page 70)

To calibrate the compass:
1. Keep [Next] pressed to enter the options menu.
2. Scroll to GENERAL using [Light Lock] and enter with [Next].
3. Scroll to Compass using [Start Stop] or [Light Lock] and enter
with [Next].
4. Press [Next] to select Calibration.
5. Turn and tilt the watch in multiple directions until the watch
beeps, indicated calibration is complete.
If the calibration is successful, the text CALIBRATION SUCCESSFUL is
displayed. If the calibration does not succeed, the text CALIBRATION
FAILED is displayed. To retry the calibration, press [Start Stop].
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