German octagonal rock crystal, gilded brass verge Circa 1620

Rock crystal and gilded brass pendant watch by Johannes Buz
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A fine and rare German octagonal rock crystal and gilded brass pre-balance spring pendant watch, circa 1620-1630. Hinged octagonal gilt brass full plate chain fusée movement, verge escapement, plain steel two-armed balance without spring, small-footed irregular oval foliate pierced and engraved cock secured by a pin. Silver chapter ring with Roman numerals applied on a gilt brass dial plate engraved with a view of a town, outer flower and foliate scroll decoration and blued steel single hand. Octagonal case, central band section set with seven faceted rock crystal panels, hinged back and front cover with similar panels. Movement signed.
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Width: 32 mm
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Length: 52 mm
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Signed: Jhnnes Buz