[TallPaul]

Very impressed with Suunto service:

Thank you for contacting Suunto.

All Suunto wristop computers are electronic devices and their compass could be affected by magnetic detection devices, but in case that happens the compass can be calibrated again and this way it will return to normal functions.

With Best Regards,
Suunto Helpdesk

Just in case anyone else is googling for the same answer....

	Suunto Visit SuuntoWatches.com to see Suunto's full line of wrist top computers and compasses.

	Compass Compasses are sensitive, absolutely crucial instruments to precision navigation. The earth's magnetic field, inclination, and your longitude and latitude all influence the horizontal plane of a compass needle. As a result, compasses are balanced for different geographical zones. Suunto Compasses overcome this limitation to traditional compasses by using a simple 'Two Zone System'. With a Suunto Compass, the only 'balancing zones' are the northern and southern hemispheres. In addition to this innovation, certain Suunto Compasses come equipped with useful features like luminous needles and marks, centimeter/inch scales, magnifying glasses, clinometers, sighting notches, and more.