Suunto SK7 Compass (Back Mounted) The Suunto SK-7 Compass has set a new standard for dive compasses. The superior Suunto SK-7 Compass features an exceptional tilt potential of +/- 30°, which is 2-3 times larger than in conventional diving compasses, easy-to-read numerals on a phosphorescent compass card & a large side-reading window. The firm-grip bezel with a ratchet at every fifth degree is especially designed to prevent sand & dirt contamination, thus allowing smooth turning in all conditions. Tilt potential of +/- 30° Phosphorescent compass card Wrist, console, or hose-mounted Large side-reading window