Chelsea Clock Company. 11E Deck and Engine room clock.

This marine clock has a brass spring wound movement that is designed to run eight days. The mechanism is jeweled and the gearing is gold plated. The escapement features a balance wheel. This means that this clock will continue to run while being moved. It is excellent quality. The vertically fitted micrometer is positioned on the front of the dial. The backplate is die-stamped with Maker’s name and serial number. The serial number is “713920,” which indicates that it was made sometime around 1966.

This case is constructed in bakelite. Bakelite is a phenolic resin. Chelsea originally went to this product due to the war time shortage of brass. It turned out to be a suitable product for the intended use of this type of clock. The bezel is the hinged. It opens from the left allowing one to access the dial. It is secured tight with a small .5 inch knurled screw knob fastener. The back of this case is also has the Chelsea Clock Co. name embossed into it.

The 8.5 inch diameter dial is cataloged as a Type A. It features a 24-hour time ring and is marked “Chelsea Clock Co. / Boston. It is also marked “U.S. GOVERMENT.” The dial is in black enamel and this contrasts with the white numerals, non luminous enamel spade hands and red painted sweep second hand.

For more information regarding Chelsea Clocks and the Company, please read Andy & David Demeter’s book, “Chelsea Clock Company: The First Hundred Years.”

About Chelsea Clock Company of Boston, Massachusetts.

The Chelsea Clock Company Board of Directors met for the first time on July 28, 1897. The Board consisted of Whipple N. Potter, Jr., President, Charles H. Pearson, Treasurer, Reginald Foster, Clerk and Secretary. Allen L. Shepherd served on the Board with the elected officers. This first group of individuals was not together long. The Chelsea firm persevered and has enjoyed a long run of success as a result of making clocks of superior manufacture. This company made many clocks. Some of which were in the style of the Willard timepiece or banjo clock, the E. Howard Model No., 70 and more famously, marine clocks. This company remains in business today.

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