Unusual Swiss silver lever Masonic pendant watch Circa 1989

Swiss silver limited edition Masonic watch by Minerva
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A fine and unusual Swiss silver keyless lever Masonic pendant watch made in a limited edition of 500 pieces, circa 1989. Sold on December 1, 1989. Rhodium-plated movement, 17 jewels, straight-line lever escapement, monometallic balance, self-compensating flat balance spring, index regulator. Blue and white enamel dial with gilt Masonic symbols in place of numerals, white triangular centre with further symbols and original gilt sword hands. Massive case, designed as a Masonic apron, polished and satine, the bezel engraved with the Union Chain, the pendant with Masonic symbols, the back with a representation of the Quadrature of the circle, with the letter G for Gnose and Geometry. Case and movement signed. Accompanied by the original fitted box, guarantee and explanation of the symbols.
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Dimensions: 66.5 x 45 mm
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Signed: Minerva