Suunto KB-20/360/R Professional Series Compass

The adjustable optics allow for bearings that can be made to ½ degree accuracy, with interval marks at intervals of 1 degree. The scale is 0 degree to 360 degrees, with a reverse scale.

Dimensions: 2.2" x 3.0" x 0.6"
Weight: 39 g (2.5 oz).