| 摘要 |
A device adapted to be worn on a diver's wrist for indicating a course underwater comprising a magnetic compass mounted in a case having a side window with means attached to the compass for presenting a visual representation of the actual course on which the diver is heading and a movable reference indicator on the case for presenting a visual indication of the desired course adjacent the window. Such device also includes a rotatable lubbers line movable with the rotatable indicator and extending across the face of the compass for alignment with indicator lines on the face of the compass for presenting a visual course indication on the face of the compass.
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