Glass-encased desk clock

The object is a clear, glass-encased desk clock with a visible mechanical movement, Roman numeral hour markers, and a pen holder attached to its base.
The clock features a silver-tone bezel and is mounted on a dark, possibly wood, base.
The pen holder is integrated into the left side of the base, holding a silver pen.
It appears to be a decorative item, possibly intended for office or home use.