German rose gold quarter repeating lever watch Circa 1910

Rose gold keyless pocket watch
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A very fine and extremely rare German 14 carat rose gold open faced quarter repeating keyless pocket watch made by the Uhrenfabrik Union in Glashütte, Sachsen, circa 1910. The ¾ plate movement with a piston tooth lever escapement, gold screw compensation balance, two hammers and two gongs. White enamel dial with Arabic hour numerals, an outer minute track, sunk center, subsidiary seconds at 6 o’clock and fine hands.
A smooth case. Dial signed Uhrenfabrik Union Glashütte Sachsen, movement signed Glashütter Uhrenfabrik Union, case signed Uhrenfabrik Union Glashütte bei Dresden, movement and case with matching numbers. Comes with the original presentation box.
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Diameter: 55 mm
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Weight: 121 g
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Signed: Glashütter Uhrenfabrik Union