The Fujinon Polaris 7x50 FMTRC-SX Binoculars are military-grade marine navigation optics meticulously engineered for commercial captains, tactical operators, and serious ocean voyagers. This elite model features an integrated, high-precision global compass with a built-in rangefinding reticle and night-illumination button, allowing mariners to instantly calculate target bearings and distances on pitch-black horizons. The advanced internal layout utilizes premium flat field flattener lenses that completely iron out edge distortion and astigmatism to guarantee razor-sharp focus across the expansive 7.5-degree field of view. All air-to-glass surfaces are multi-coated with Fujinon's signature Electron Beam Coating (EBC), yielding a spectacular 95 percent light transmission rating to capture stellar brightness from deep twilight down to midnight watch shifts. Sealed in a 100% waterproof, nitrogen-purged aluminum vault wrapped in shock-absorbing rubber armor, this individual-eyepiece focus instrument delivers an ultra-stable 7.1mm exit pupil that keeps your horizon perfectly tracked on turbulent rolling seas. Fujinon Polaris 7x50 FMTRC-SX Water Resistant Binoculars w/ Built-In Compass Lens Multicoating Field Flattener Lenses Rubber Coating 16330615,