On a recent trip to Girard-Perregaux, I was shown an antique marine chronometer. There is a close connection of the manufacture with marine chronometers and its pioneer John Harrison. For more details on that, go back to my previous background report.
The marine chronometer comes in a typical box and a bi-axial bearing that allows to clock to stay level at sea. The top of the case can be slid open for a quick time check. AS can be seen, the clock is still “as is” so it will probably go through some restoration before going into the museum.