There’s a very long history of creating intricate clockwork mechanisms in that region. It can be as simple as an actual clock or watch, or as elaborate and whimsical as this. Some of the cuckoo clocks from neighboring German-speaking areas can be quite startling and ingenious. Such things are prized for their craftsmanship, beauty and sometimes even humor, not their utility.
I understand art and ingenuity, but encrusting it with diamonds and pearls seems a little excessive. Vincent Van Gogh died poor, and his paintings are worth millions now. No diamonds needed.