A sextant is a instrument for measuring the angle between two objects by bringing into coincidence to the eye of the observer, rays of light received directly from one object and reflected from the other.
Its principal use is to measure the altitudes of celestal bodies above the visible sea horizon.

Frame: : Made of sea water resistant aluminum
Mirror: Polished crystal glass; sea water resistant silver coating covered by protective varnishig
Telescope: High quality 4 x 40 telescope of type galileo; Teleskope: a field of view of 9° or 160 feet / 1000 feet ensures safe finding and keeping of star, even in rough waters
Shade glasses: 4 index shade glasses; 3 horizon shade glasses. Fully tined and of different, optimally harmonized transmission
Illumination: Arc and vernier are illuminated; the battery and the push button are integrated in the sextant handle
Accessories: : - wood case
- mirror adjustment key
- special sextant oil
- a rag to clean the optical parts and a brush
- operations manual and quality certificate t

Specification:
Arc radius: 153 mm Measuring
Angle: -5° - 130 °
Accuracy: +/- 20"
Division of drum: 1’
Division of vernier: 0.2’
Horizon mirror: 50 mm
Diameter Index mirror: 50 mm
Spannung für Beleuchtung: 3V
Weight of sextant: : ca. 1,3 kg
Weight of box: ca. 3,7 kg
Dimensions of sextant case: 33,3 x 17 x 27,4 cm