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What is Magnetic Declination?
• The Magnetic North Pole is slightly different from the True North Pole.
This watch points to the Magnetic North Pole. Everything measured on a
map is related to the True North Pole.
• The angular difference between the Magnetic North Pole and the True
North Pole is called Magnetic Declination. The amount (degrees and
minutes) and direction (easterly and westerly) depends on where you
are in the world.
• For the advanced compass user who intends to perform an accurate navigation,
the compass must be adjusted for magnetic declination.
• The Watch also includes a compensation setting for Magnetic Declination. Check
the coming section “Calibrating the compass - Magnetic Declination Mode” on
p.39-41 for more details.
Magnetic Declination Information
• Most topographic maps show a magnetic north pole and/or the magnetic
declination information. See the “Magnetic Declination at Major Cities”
section on p.34-38.
• For those cities whose names are not included in the list, enter the cities
latitude and longitude into one of the below magnetic declination
calculator websites:
- http://gsc.nrcan.gc.ca/geomag/index_e.php
- http://www.ngdc.noaa.gov/geomag
Magnetic Declination
Magnetic Declination
Magnetic North
True North