Davis Mark 15 Marine Sextant • Large, easily adjusted mirrors using new instrument-quality glass and a special baked on salt-spray resistant backing. • Both mirrors have protective housings. • Horizon mirror is half-silvered. No adjustment wrenches required. • Moulded of high-impact, weather-resistant plastic. Viewing Field Illuminator Weight MARK 15 Half-Silvered −? 14.5 oz. #026 Horizon Mirror (0.41 kg) 1.64 - 1.14" (42 -?29 mm)
All Davis Master Sextants feature the following professional specifications:
• 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. |