German 14 Carat gold minute repeating hunting cased watch Circa 1899

Very heavy gold hunting cased pocket watch by Union Glashütte
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A German, historically interesting, museum quality Glashütte pocket watch with minute repeater, in top quality 1A, circa 1899. Accompanied by the original box and original papers and owned by Berlin architect Wilhelm Riehmer in 1899.
14 Carat red gold, full hunter à-goutte (water drop shape) case with monograms and dust cover with a gift dedication to Wilhelm Riehmer 1899, factory glazing. Signed enamel dial with Arabic radial hours, outer minutes track, subsidiary dial for the seconds, and gold Louis XV style hands. Glashütte precision lever movement in top quality 1A, with a diamond capstone, gold lever, golden escape wheel, fine adjustment, screwed gold chatons, and minute repeater. Case and movement with the same number.
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Diameter: 59 mm
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Weight: 168 g
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Signed: Uhrenfabrik Union Glashútte in Sachsen
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The watch is in excellent condition with its original box and original papers. The size and weight of the full hunter case are impressive, in the style of Glashütte anchor chronometers. The dedication and the two monograms WR and OM indicate that it is the clock of the Berlin architect Wilhelm Riehmer, the builder of the listed residential complex, Riehmers Hofgarten, Probably a gift from his partner Otto Mrosk for completion in 1899 – a piece of Berlin history! In addition to its interesting history, this watch is also very interesting for collectors. Very few Union watches were built of this quality and with the complication of a minute repeater. They are much rarer than comparable pieces by Lange & Söhne