Astronomic floorstanding clock from the Austrian
clockmaker Joseph Geist in
Case: black ebonized wood from a fruit tree, total
original untouched condition.
Movement: yearrunner movement with
Graham deadbeat escapement
and Harrison’s maintaining power.
Mechanism protected by glass.
Dial: extreme large (ca. 12,6") silvered brass dial, signed "Joseph Geist in Gratz"
(= Graz, Austria, Styria).
Brass precision hand for minute, auxiliary
dials for seconds, hour, perpetual calendar, zodiac and a blued hand for
Hole for winding up opens once a year in January!
Cardanic knife edge suspension.
Pendulum cradle with Micrometer-adjustment.
Pendulum: ca. 18 kg, weight: ca. 26 kg.
floorstanding clock with yearrunner movement and equation was missed for
more than 100 years! Now this real rare treasure was found again in Graz (Austria,
Styria) in original condition!
The history tells us, that the
clock comes from Professor Johann Philipp Neumann from
the KK Polytechnischen Institut Vienna - today Technische Universität
You may read the
whole story of this exceptional astronomic clock in the book
of Mr. Jürgen Ermert:
Precision Pendulum Clocks in Germany from 1730 to 1950 –
Observatories, Astronomers, Standard Time Agencies and their Clocks.
- Volume 2/4.
GEIST (1770 - 1824)
Son of Simon Geist – Groß-
und Hofuhrmacher in Graz.
Born about 1770 in Wien, lived in Schmiedgasse 325, Graz.
Geist was the founder of the 1st Austrian clock factory. In young years
Geist was fascinated by astrophysics and that was why he built precision
clocks with some indications
like perpetual calendar, equation,...
well known clocks from
for Grazer Schlossberg-tower clock, about 1821.
Floorstanding clock in the Stadtmuseum Graz.
Floorstanding clock with a ½ year movement in the Sitzungssaal der
Steiermärkischen Landesregierung, about 1803.
Floorstanding clock with 1month movement and hexagonal head about
1800, private collection.