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Astra IIIB Deluxe Sextant Whole Horizon Mirror

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    Purchase Astra IIIB Deluxe Sextant Whole Horizon Mirror

    Astra IIIB Deluxe Sextant Whole Horizon Mirror Product Code: khsex0025

    £749.00 £699.99

    You Save: £49.01 (around 7%)

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    Description

    The Astra IIIB is considered to be the easiest to use with its light weight and excellent balance, making it great to hold and makes sights easier under dynamic weather and sea conditions, reading the sextant is easier under low light conditions by having white degree marks against a black background as opposed to scribe marks on a brass. The frame is made from lightweight aluminum alloy which resists corrosion.

    The index mirror is rectangular in shape and is the same size as used more expensive sextants. This shape allows more aspect of the mirror to be available for high angle sights. This means the sextant does not have to be held as steady for them. An index mirror upgrade kit is available for older models having smaller, round, index mirrors. It comes mounted in a rectangular frame and has instructions for easy installation.

    With LED lighting of the arc and drum powered by two standard size AA batteries which are installed in the handle, it comes in a very nice varnished wooden case, instruction book, certificate of accuracy and adjusting wrench. Case size external 6.5 x 13 x 11 inches. Including 3.5 x 40 monocular telescope as standard equipment.

    Specifications
    • Arc -5 degree + 130 degree, radius 153mm
    • Accuracy plus/minus 20 throughout the arc
    • Micrometer Drum 1' scale, vernier to 0.1'>
    • Horizon Mirror 51mm diameter
    • Index Mirrors 56 x 42mm
    • Shades 4 index - 3 horizon
    • Weight 2 lbs - 10 oz
    • Brand: Chart Co
    • Manufacturer: Chart Co
    • Manufacturers Part Number: sex0025

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