Chelsea Clock Company Ship's Clock with Barometer on Plank and Brass Inclinometer. The ship's bell clock is on top, the barometer on bottom, with brass exteriors and hinged lids to open in order to adjust the mechanisms with a wind-up key. The inclinometer, also known as a heel or pitch gauge, measures the angle of a boat's tilt, and the ornately patterned top is complemented by a swinging pendulum in the same style. 

Size: 13 x 6 1/4 x 4 1/4 in. 

Chelsea Clock Company traces its origins to 1880 when Joseph Henry Eastman founded the Harvard Clock Company, producing marine, carriage, banjo, and shelf clocks. After several reorganizations the materials of Harvard, Eastman Clock Company, Ansonia Clock Company, and the Boston Clock Company were combined by Charles Pearson to establish Chelsea Clock in 1897. The company gained prominence for ship’s bell and pendulum clocks, supplying the U.S. Navy and Treasury, while Pearson’s protege William Neagle navigated the Great Depression by updating models like the Forecaster, Fulton, and Georgian. From World War II on, Chelsea supplied the Strategic Air Command and expanded into electric and consumer clocks, later changing hands through Automation Industries, Bunker Ramo, and entrepreneur Richard Leavitt. Embracing quartz and digital technologies in the 1980s with the Chronoquartz line, Chelsea faced declining government contracts but continued production until the 2015 demolition of the original factory. 

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