State-of-the-art X-ray scans have revealed the internal mechanisms of a corroded, barnacle-covered pocket watch recovered from a seventeenth-century wreck. The watch looks little more than a lump of rock from the outside, but the scans show that the mechanism inside is beautifully preserved, from delicate cogwheels and Egyptian-style pillars to the maker’s inscription.
Researchers from the National Museums Scotland in Edinburgh used the images to construct a three-dimensional virtual reconstruction of the watch’s lost workings (see video flythrough). They hope to use the technique to probe the internal structure of other archaeological artefacts, especially those salvaged from underwater sites. The watch and three-dimensional reconstruction are now on display in the Treasured exhibition of the National Museum of Scotland until 2011.