The Mares Mission 1C is a wrist-mounted compass for underwater navigation. The oil-filled capsule keeps the card damped and steady, so the bearing settles quickly rather than swinging with each movement.
Tilt compensation allows accurate readings without holding the compass perfectly level, which matters when navigating mid-water or on an uneven bottom. Phosphorescent markings and colored north and south indication keep the card readable in low light, and the rotating bezel sets and holds a bearing. An adjustable wrist strap secures the unit over a wetsuit or drysuit sleeve.
