The Fujinon 7x50 ARC-SX Nautilus Binocular is their 'standard' military-specification model 7x50 unit with compass, sold to government institutions all over the world. This binocular has Fujinon's EBC multicoatings and is made for harsh use in all conditions. It has a strong housing made of metal as well as thick rubber armor, and the eyecups are peel-down style and made to endure for years. This is an individual focus 7x50 unit, made with the assumption of use in a boating environment. While the compass is electronically controlled for rapid response to bearing changes, illumination is by a natural daylight-gathering window. At night, you will need the optional external compass illuminator.
Fujinon's "standard" military-specification 7x50 7.5° boating binocular with compass
Heavy rubber armor around a metal alloy housing
Fujinon EBC multicoatings
A nitrogen-purged, 100% waterproof & fogproof housing
58-72mm Interpupillary adjustment range
Internal compass with rangefinding reticle to help estimate distances of nearby watercraft
Optional external compass illuminator
Tough peel-down type eyecups
Permanently-attached objective caps