A question about the accuracy of a compass watch?

I was reading a review of the Timex E-Compass watches and wondered about the following statement;





"The Electronic compass is accurate to within 10 degrees and includes a Declination Adjustment Scale."





If it's accurate to within 10 degrees is this going to be a big problem when map reading? Or if I kept taking new bearings would it then be accurate?





http://blog.mywatchshop.co.uk/?cat=66|||I assume the 'compass display' is digital .. 'accurate within 10 degrees' just means there are only 36 possible positions for the 'pointer' ...





For terrestrial map reading (in daylight), 10 degrees would be OK, since you can 'fine adjust' off the visible terrain features (especially if you are following a track / path / road ..) .. remember, the difference between magnetic %26amp; true North is about 5 degrees anyway ..





Even so, the serious hill walker would always use GPS these days .... (a cheap GPS is going to cost you LESS than some fancy watch plus OS map plus map holder etc)