A sturdy marine compass with good protection against hard knocks. The smooth finish feels smooth but will not slip even if wet. Outstanding legibility of card with one-degree gradations. No parallax error: a prism projects the reading of the bearing to infinity. You do not need to alternate close-reading to read the card and infinite-reading to take bearings. Optimum conditions to take bearings thanks to the superb card stability and the wide 20 degree field of view, which will accommodate the roughest sea conditions. The pivot and very hard stone guarantee accuracy, long life and shock resistance.
Engineered using ultra-sonic welding, the soft-bottom cell acts like an expansion diaphragm, preventing formation of bubbles and leaks. Course reading from above compass; reads like a standard compass - no need to look through prism.
Built-in photoluminescent lighting, completely maintenance free, impervious to corrosion, operates without batteries or radioactive tritium. Clearance +/-12 degrees. Red lubber lines. 5 year warranty. Blue.