I had two of these compasses ordered as small gifts. When unpacking, there was already a disillusionment. The case was processed very unclean (poorly deburred metal housing and places notches in the housing material). With a compass, the lid was opened with quite a large effort, in which others were dirt particles in the liquid. And the best part is, both compass needles showed in different directions. A comparison with a Navi display showed that no compass was 100% accurate.