Davis Mark 15 Master Sextant [026] Communication | Single Side Band because they even work as

because they even work as replacements in competitive bases

and spots over 19 miles offshore in depths ranging from 65’ to 80’

Resists saltwater deposits

Part #: 1749-4

Davis Mark 15 Master Sextant [026] Communication | Single Side Band because they even work asMark 15 Sextant #026 This model has many great features including seven large sunshades, a 3 mm 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 to 5 and comes with a traditional half silvered mirror. Comes with instruction booklet. Owner's Manual (pdf)