Due to the Covid-19 virus Captains is temporarily suspending orders


Tamaya Jupiter Sextant

The Tamaya Jupiter Sextant is the Japanese company’s full-size best value sextant.


Full 57mm index mirror. Rubber eye protector. Full illumination of both arc and drum. Carrying case: double wall air molded plastic with two slide locks. Can be stored in fitted case with scope mounted. Interchangeable telescopes available in 4x40 or 7x35 (sold separately). Measuring range: -5° to 90°. Accuracy: less than 18 seconds of arc. Telescopes: 4x40: angle of view -7°, relative brightness 100 or 7x35mm: angle of view 6.5°, relative brightness 25. All optics are fully coated. Frame: lightweight die cast aluminum alloy with corrosion resistant black finish and bronze arc. Vernier Scale: reads to 0'.2. Index mirror: (57x42mm) Aluminized on rear side. Horizon Mirror 57mm diameter. Shade Glass: four for index mirror, three for horizon mirror, one shade glass and one Polaroid glass for eyepiece of telescope.


  • Aluminum & bronze
  • .5 to 90
  • .2mm rad
  • LED
  • (Scope not included)