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Classic watches, watchmaking, antique tools, history, vintage ephemera and more!

Learn about mechanical timepieces and how they work, the history of the American watch industry and especially all about the Elgin National Watch Company! Check back for new content daily.

Although this is technically a blog, the content is not generally in a time-based sequence. You can find interesting items throughout. Down the page some is an alphabetical word cloud of keywords used here. A great way to dig in is to look through those topics and click anything you find interesting. You'll see all the relevant content.

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Belgian Wonder Clock

From American Horologist magazine, October 1938


Belgian Wonder Clock

Controlled by a single master movement, the 93 dials of this 16-foot high clock, now on view at the New York Museum of Science and Industry in Rockefeller Center, continuously record a remarkable series of detailed chronological and astronomical calculations.


Among them are the time divisions of the world, tidal movements at principal ports, movements at all times of the earth, sun, moon, planets and stars, and numerous others. The indicator of the slowest dial will not make a complete revolution for 26,000 years, while the fastest indicator revolves around its dial in 1/100 of a second. The former records calculations dealing with the transformation of the polar star while the latter has to do with the horizontal equatorial parallax. 


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