Made by Chelsea Clock Company in Chelsea Massachusetts, Model 12 E United States Government Ships Clock. Manufacturing date of 1958. Chelsea 8 day high grade time only brass mechanical movement. Waltham made eleven jewel lever escapement platform with micrometer type regulator. This all original clock has been mounted in a new style bakelite case with a swing open bezel. This clock has a 6 inch 12/24 hour white finish brass dial, brass backplate and brass spade hands painted black. Black full sweep aluminum seconds hand. Runs for 8 or more days on a single / full winding. This clock is keeping accurate time and running strong. Ready to be a faithful timekeeper of the sea. A Chelsea mainspring winding key will be included. We specialize in servicing, repairs and restoration of Chelsea Maritime Clocks. Thanks for looking.