The Mark 15 Davis Plastic Sextant features a precision-machined slow travel gear and worm mechanism, along with an easy-to-read micrometer drum and vernier.

This model has many great features including seven large sunshades, a 3 x 27 mm star scope, and easy-to-read micrometer drum vernier scale that reads to 2/10 of a minute. The Mark 15 has a 7" (18 cm) frame radius graduated from 120 degrees to -5 degrees and comes with a traditional half-silvered mirror.

Weight (sextant only) ) 0.41kg.

The plastic used in manufacture is durable to resist bending and breaking, corrosion resistant and light weight.

Comes with instruction booklet.

Supplied in a plastic case.