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The Perpetual Calendar Clock: Watch a Mesmerizing Video

On July 16th, Skinner will sell Henri Robert’s perpetual calendar clock, which was shown in the Paris Exposition of 1839. The calendar mounted in the lower section of the Belgian slate case was uniquely designed to show the year, month, day-of-the-month and day-of-the-week through the use of a single silvered dial and concentric hands, all self-correcting for the four-year cycles of leap year.

Watch William Bond’s Astronomical Regulator No. 396 in Action

Over 140 years ago, in 1868, the antique clock you see running below kept Standard Time in New England. This masterpiece is The Bond Shop Astronomical Regulator No. 396, crafted by William Bond & Son. It is one of only three known in the world, and once stood in the window of the William Bond chronometer shop in Boston.

Now I’ll let the clock speak for itself—Watch and listen to it running as cleanly as it did in 1868.

Skinner will auction this spectacular precision timekeeper on November 20, 2010 in our Marlborough, Massachusetts auction of Science, Technology, Clocks, & Militaria.… Read More

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