Melanchthon's Pomander Watch

Pomander watch, dated 1530, engraved on lower part of case PHIL MELA GOTT ALLEIN DIE EHR 1530 (Phillip Melanchthon, Glory to god alone 1530)

Clock-watch with bell inside the case, lid attached at the '6', pointy touch-knob at the '12' to feel the time in darkness.

Walters Art Museum, Baltimore, USA

This is the world's oldest dated portable watch.