Timex Intelligent Quartz Manual page 163

than normal concentrations of hard and soft iron, as they
may cause inaccurate headings. Whenever a heading is
suspect, recalibrate.
Do not store the watch near any source of magnetism,
such as a computer, appliance, or television, as the
watch can take on a magnetic charge, yielding inaccurate
headings. Typical accuracy of wrist-worn instruments is
within +/- 10 degrees.
To calibrate the compass:
1. Pull the crown to its middle position and wait for the
indicator hands to stop moving.
2. Keep the watch level or place it on a level surface (if
the band interferes, place the watch on an inverted
cup). The watch may be face down, but take care to
protect the watch face.
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