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Alle Auktionen / Uhren / Exceptionally rare quartz marine chronometer produced by Spe...
Exceptionally rare quartz marine chronometer produced by Sperry Gyroscope Limited of Stonehouse, Gloucestershire, circa late 1950s, the 4” silvered dial with elegant blued steel hands in its original bronzed coloured enamelled metal case, 10.5” high, 10.5” wide ** An extraordinary, historical development representing the dawn of solid state electronic timekeeping. Engineered by the legendary firm Sperry Gyroscope Co., this ultra high frequency 102.4 kHz quartz crystal chronometer utilises pioneering germanium transistor circuitry to provide the oscillator, frequency divider and clock driver functions are required to operate the 4” silvered dial with elegant blued steel hands. These hands are driven by a 2 Hz stepping motor, moving the centre second hand in half second steps ** Believed to be the only known cased production example ** From the David Read Collection
Schätzpreis:€1,767.6
Zur AuktionAlle Objekte ansehen vonGardiner HoulgateoderUhren
Schätzpreis:
€1,767.6
A late 18th century satinwood bracket clock with ormolu mounts, lion-head
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€235.78
Schätzw.: €233.32
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French console clock of gilded bronze, richly cast with foliage, garlands
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Jean-François Denière (1774 - 1866): A large Napoleon III figural
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A Historicism mantel clock. Early 20th century. H. 42 cm. W. 32 cm.
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€321.06
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