Eastman Clock Co. 12" Marine Clock for Ashcroft Mfg. Co. An exceedingly are large dial marine clock. Only one other 12" dial Eastman clock is known to exist. The movement front plate is stamped with serial number 349. The case has been polished and lacquered.The dial and hands have their original surfaces and are in very fine condition. The movement has been overhauled. The clock is listed in the Chelsea Clock Museum Eastman Register of surviving Eastman clocks and movements. Eastman Clock Co. was only in business from 1894 to 1896. Visit chelseaclockmuseum.com for more information about the fine clocks produced by Joseph Eastman and a complete listing of his clocks.