The traditional instrument for celestial position finding at sea. Comfortable weight and size with excellent balance from it's well constructed aluminium frame. Large horizon and index mirrors which are tested for optical flatness and parallelism. The clamping device and micrometer drum are fully enclosed for protection against dirt and water spray.
Standard telescope 4x40 is adjustable for height and fitted with a protective rubber eyepiece. The correct amount of brightness through the sextants optical light paths is cnotrolled by means of swinging graded filters 4 for the index and 3 for the horizon mirrors.
Graduated Arc - Radius:170mm
Scale of Degrees:-5º to +125º
Interval:1º
Drum Graduations:Interval:1'
Telescope - Lens Aperture:40mm
Magnification:4x
Dimensions - 26cm X 24cm X 13cm
Carrying Case: 34cm X 32cm X 17cm