Once upon a time there were many compasses with friction declination presets. You just rotated the compass capsule inside the bezel and voila, declination is set.

But these seem to have disappeared in favor of the imprinted baseplate declination scale and the only presettable ones I see now have the little setscrew. I dislike the scale because I sometimes forget which side of north to place the offset (when I'm tired, cranky, whatever) and then I'm 30 degrees off.

The presettable compasses all seem large, but perhaps there are some small models out there still. That would be my preference.

Cheers,