Eureka mantel clock

The example shown is in a Mahogany case, but many are in glazed cases so that the main feature, the large balance wheel can be better seen.

Battery electric with large balance wheel

This picture is provided courtesy of Bryan Mumford, who has more information about Eureka clocks on his web site. See http://www.bmumford.com/clocks/eureka/eureka.html

The Eureka was first introduced in the UK in about 1908. The patent is dated June 26 1906.

Now very much sought after but beware, many have been bodged up so careful examination is necessary