German rare open faced anker chronometer watch Circa 1900

Synthetic transparent watch with rare movement
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An extremely rare anker chronometer made by Richard Glaeser in Glashütte, Germany, circa 1900. The transparent case, made for the rare movement, is as good as new and glazed on both sides. The white enamel dial features Arabic hour numerals, an outer minute track, subsidiary seconds at 6 o’clock and original gold hands. The extremely unusual and numbered anker chronometer movement is equipped with a lever escapement, large balance wheel, gold lever and gold escape wheel.
The dial and movement are signed.
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Diameter: 58.5 mm
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Signed: Richard Gaeser Glashütte B/Dresden
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Anker chronometers by Richard Glaeser are much rarer than anker chronometers by
A. Lange & Söhne. Only a few of these timepieces are known to exist.