A fine ship’s bell bulkhead clock striking the ‘Dog Watches’ Sequence. This eight day twin fusee clock is a rare example of a ships striking clock marking the watches on board a ship.The high quality movement regulated by a large gilded platform lever escapement, thick brass plates with their original lacquer and water of air finishing, held by four turned pillars striking on a large polished bell of rich tone. The silvered roman dial with subsidiary seconds is signed Beaver, Manchester, and has large blued steel spade hands. Housed in a bronze case the bezel of contrasting polished brass is glazed in thick bevelled glass.Louis Beaver of Manchester was recorded as working between 1840 and 1878, we believe this clock was made circa 1850.Before the introduction of mechanical timekeepers, time onboard ship was measured using a ''30 minute'' sand glass. Starting at the beginning of each watch it was the duty of the helmsman or quartermaster to reverse this glass every thirty mi...