Astra IIIB Deluxe Sextant - Whole Horizon Mirror
This item is worth 3150 Marine Miles points!
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.
- Arc -5 degree + 130 degree, radius 153mm
- Accuracy ± 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
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