NavList:

Dear NavList members,

I’m offering a Tamaya MS-633 micrometer marine sextant for sale — complete, well-preserved, and certified with zero arc-index error. This is a superb example of Japanese precision, ideal for celestial navigation, instruction, or serious collection.

Details:

• Model: Tamaya MS-633 (Toizaki & Co. Ltd., Japan)

• Serial No.: 4448

• Inspection Date: 23 February 1978

• Arc Corrections: Zero at all standard points (see certificate)

• Includes:

  • 7x wide-angle telescope (with lens cap)

  • 12x high-magnification telescope with crosshair reticle (also with cap; minor barrel scratch, optics unaffected)

  • Original Tamaya wooden case with green felt interior

    (Note: leather carry handle is broken but mounting hardware intact)

  • Original instruction manual and Certificate of Examination

  • Both lens caps, fitted compartments, and clean optics throughout

Condition: Excellent. Recently cleaned. Smooth micrometer movement. No corrosion, no mirror desilvering.

Location: Sydney, Australia

eBay Listing – Tamaya MS-633 Sextant

Best regards,

Matt