Nautech Tamaya
MS 733 Spica Sextant

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Nautech Tamaya Sextant


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Nautech Tamaya Sextant

Model:  Spica MS 733

Serial No. 39475      Dated:  Nov. 10, 1976

The overall condition of this prestige sextant is excellent, actually showing zero wear or use.  This is a “Top of the Line” instrument for the professional or serious student who is seeking something special.  Tamaya Sextants are unique with their lighter-weight frames of aluminum but with the higher accuracy of a bronze arc. This is a “best of both worlds” choice.

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Nautech Tamaya Sextant Top of the Line

Nautech Tamaya Sextant

 We are very pleased to present this pristine 1976 Nautech Tamaya Spica sextant, Serial Number 39475, with a 4 x 40 star scope.
We marketed this instrument 46 years ago to a gentleman whose son presented it to us.  He said that his dad had enjoyed teaching celestial navigation among other interests.  We were directly involved with Tamaya during those years, and my company, Nautech Maritime Corporation, was instrumental in the design and introduction of their MS 733 SPICA, MS 833 Jupiter, and MS 933 Venus sextants, and the famous NC 2, and NC 77 navigation computers.

The new Spica M 733 sextant currently retails for just under $2000 with this scope.

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Nautech Tamaya Sextant

The case is also in excellent condition

Case Measurement:  11″ x 11″ x 6″        Weight with Sextant:  8 lbs. 11 oz.


4 x 40 is considered a STAR Scope because it transmits more light through the optics than higher-powered scopes. Its wider field of vision is an advantage in low light conditions.

SEXTANT & CASE CONDITION: Irrespective of age, the overall condition is excellent. The lighting works. All moving parts turn freely. Nothing is broken.  There is a tiny clouded spot on the Horizon mirror but other than that, this is a perfectly like new instrument.  Mirrors are perpendicular to the frame.  The sextant’s paint on the frame is as new. All the numbers match. This sextant is in excellent condition.

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Shipping & Packaging

The cost of shipping, packing, handling, and insurance to your destination, will be calculated point to point and is an additional charge. You may email us to get these costs. We price our shipping honestly, but we expect to be reimbursed for the nominal cost of packaging materials and handling.

Our Unconditional 'No Nonsense' Guarantee

If not completely satisfied with your purchase it may be returned, if without damage, within three days of receipt in its original packaging. Return items must be insured for their full value. Only a prior email authorization by us for the return is required. Shipping charges are refundable if due to our error within the continental United States.

International buyers welcome, but inquire first. We have satisfied customers worldwide.

Standard Forms of Payment

Bank wire transfer, cashier’s check, money order, or personal check in which case the item will be held until cleared. Our prices are quoted net to us so that the use of credit cards or PayPal incur extra charges. Terms on overseas sales are different.

Established in 2003

Celebrating 18 Years of Exellence in Nautical Antiques

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