Yes. The device was pulled up by Greek fishermen in 1900 at the site of a Classical era shipwreck. It apparently was originally housed in a wooden box and driven by a crank and gear mechanism, probably looking rather like an 18th century clock. X-ray analysis of the internals of the mechanism show it to be an astronomical computer. details of the settings at the time of its loss indicate a last use was in the year 82 BC. It apparently used the Egyptian calendar, and was probably built in Alexandria.