Spring-wound - wound with a key, runs for 3-5 days.
Quarter beat - 1/4 - beats every 15 minutes.
Silver-plated dial, frame and pendulum, all chiseled brass.
Columns, legs and main decoration made of alabaster.
Lyre suspended under the dial and Corinthian capitals - polychrome - gilded with gold leaf.
Small decoration around the main decoration - mother-of-pearl.