Lot No. 433 (104th Auction)
Estimate 3,000 - 5,000 €
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Night blue chapter ring.
Nickel-plated, torsion pendulum.
very good, capable of running.
225 x 175 x 140 mm
This is the traditional version of the clock in a silver coloured case with round dial and nickel-plated Arabic numerals and indexes.
The Atmos (for atmospheric clock) takes its energy from from the expansion and contraction of a capsule filled with ethyl chloride gas that responds to changes in temperature and barometric pressure. The produced energy winds the mainspring. According to the makers of the clock, a temperature difference of 1 Kelvin creates a power reserve of approximately 48 hours.