16th Century Gun Powder Flask-Sundial Compass Watch

The "Swiss-Army-knife" of its time, a gunpowder flask/sundial compass watch is featured in a watch enthusiasts' blog complete with a large, detailed photo. The object was created in Germany around 1590.

The portable watch consists of a "round powder flask made of rosewood with inlaid and engraved rosette-shaped ornaments of brass and bone."