This clock was seen on eBay recently and finished unsold so the seller may relist it. It is the same model and make as the clock seen on I Love Lucy.  It is a working electric wall clock like the one on the show – these can optionally  be converted to battery by switching out the movement, instructions can easily be found online. See more details about the clock on my previous post HERE.
See it on eBay HERE

The Wall Clock frequently seen on set next to the kitchen door on “I Love Lucy” is an electric banjo clock made by the Trend Clock Company in Zeeland, Michigan, Model 606.

The Trend Clock Company founded in 1937 was in business until it was sold in 1968 and afterwards renamed the Sligh Clock Company.

See similar clock on eBay

The founders of Trend Clock Company were Garrett Van Temelen and his son Gordon who began making mantel and desk clocks part time, in the basement of their home in Zeeland, MI. and sold their products locally. During the war years when clock parts were scarce they switched to making wood novelties, and eventually bought a factory building and picked up the clock business again successfully in the post war years. They produced a popular line of planter clocks and early American styles, and by the 60s were making grandfather clocks until they were bought out by the Sligh Company.

Reference:

•  A Furniture Family: The Slighs of Michigan Francis X. Blouin, Thomas Edgerton Powers Michigan Historical Collections/Bentley Historical Library, University of Michigan, 1980 – 26
• http://www.amazon.com/Grand-Rapids-Furniture-Story-Americas/dp/0966652401