Want that bit of insurance in case the power fails, well this is the answer, used by many a mariner for navigation around the world. Large, easily adjusted mirrors using new instrument-quality glass and a special baked on salt-spray resistant backing.

Key Features

• Both mirrors have protective housings.
• Horizon mirror is half-silvered. No adjustment wrenches required.
• Moulded of high-impact, weather-resist
• 7" (18 cm) frame radius. Graduation 120° to −5°
• Index mirror rectangular, 1.98" × 1.49" (50 × 38 mm).
• Precision machined slow travel gear and worm mechanism.
• Highly visible, easy-to-read micrometer drum and vernier allowing readings to 2/10 minute of arc.
• Fully ribbed, three-circle sextant body for platform strength and stability.
• Large, contoured handle designed for sure, steady grip and angled back for added control.
• Seven large sunshades allow complete, independent adjustment of shading density for horizon and index mirrors.
• 3 × 27 mm star telescope with anti-reflective coated glass lenses, plus separate hooded sight tube for glare-free sun shots.
• Neck lanyard frees hand and protects sextant.
• Tough, fully padded, shock-resisting carrying case with compartments for extra batteries and mirror kits.