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Setting Up for True North Readings
(Magnetic Declination Calibration)
If you want the watch to indicate true north
instead of magnetic north, you need to specify
your current location’s magnetic declination
direction (east or west) and declination angle.
l
Magnetic North and True North
●
The magnetic declination angle value can
be set in 1° (degree) units only. Use a value
that is closest to the angle you want to set.
Example: For an angle of 7.4°, set 7°.
Example: For an angle of 7°40’ (7 degrees,
40 minutes), set 8°.
Note
●
Magnetic declination angles (east or
west) and angle degree values for
specific locations can be found on
geographic maps, mountain climbing
maps, and other maps that include
contour lines.
1. Enter the Compass Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out.
This displays .
3. Press (B).
This displays [
o
1].
Crown
4. Press (B).
This displays [DEC] and the current
magnetic declination setting.
5. Rotate the crown to select a magnetic
declination direction and angle settings as
desired.
Setting range: 90° west to 90° east
[OFF]: Magnetic north
[E]: East declination (Magnetic north is
east of true north.)
[W]: West declination (Magnetic north is
west of true north.)
●
To return the setting to [OFF], press (A)
and (C) at the same time.
＋
−
Magnetic declination angle
Magnetic declination direction
6. Push the crown back in and then lock it.
Note
●
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.
●
Magnetic North and True North
There are actually two types of north:
magnetic north and true north.
Magnetic north: North indicated by the needle
of a compass
True north: Direction to the North Pole
As shown in the illustration below, magnetic
north and true north are not the same.
Earth
Magnetic north
True north
Note
●
The north indicated on commercially
available maps is normally true north.
Digital Compass Reading
Precautions
Location During Use
Taking readings near sources of strong
magnetism can cause reading error. Keep the
watch away from the following types of items.
Permanent magnets (magnetic accessories,
etc.), metal objects, high-voltage wires, aerial
wires, electrical household appliances (TVs,
computers, cellphones, etc.)
●
Note that correct direction readings are not
possible indoors, especially inside of
reinforced concrete structures.
●
Accurate direction readings are not
possible on electric trains, on boats, on
aircraft, etc.
Storage Location
Exposure of the watch to magnetism can
affect the accuracy of digital compass
readings. Keep the watch away from the types
of items below.
Permanent magnets (magnetic accessories,
etc.), metal objects, electrical household
appliances (TVs, computers, cellphones, etc.)
Watch Operation Guide 5713
34
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