Mark 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)

![Davis Mark 15 Master Sextant [026]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/davis-mark-15-master-sextant-026.webp)
![Albin Group Replacement Cartridge for 1100 GPH - 12V [01-92-086]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/albin-group-replacement-cartridge-1100-gph-12v-01-92-086.webp)
![Shadow-Caster 3-Position On/Off/Momentary Marine LED Lighting Switch [SCM-SWITCH-O/O/M]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/shadow-caster-3-position-off-momentary-marine-led-lighting-switch-scm-switch-o-o.webp)
![Victron Skylla-i Control GX Remote Panel f/Skylla Charger [REC000300010R]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/victron-skylla-i-control-gx-remote-panel-f-skylla-charger-rec000300010r.webp)
![Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471HX400 [SSM-517A]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/standard-horizon-ssm-517a-earpiece-microphone-f-hx270-hx370-hx471hx400-ssm-517a.webp)
![Victron GX Touch 50 Adapter f/CCGX Cut-Out [BPP900460050]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/victron-gx-touch-50-adapter-f-ccgx-cut-out-bpp900460050.webp)
![Victron GX Touch 70 Surface Mount Display - 7" [BPP900455070]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/victron-gx-touch-70-surface-mount-display-7-bpp900455070.webp)
![Raritan Heavy-Duty Push Button Switch - Brass [164000BR]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/raritan-heavy-duty-push-button-switch-brass-164000br.webp)
![Standard Horizon Nylon Carry Case f/HX400HX380 [SHC-20]](https://www.cycleutilitymarket.com/wp-content/uploads/2026/11/standard-horizon-nylon-carry-case-f-hx400hx380-shc-20.webp)