Articles of jewelry, in particular belt buckles of precious metal, bracelets of precious metal, pins, tie clips, cuff-links, diamonds, earrings, pendants, necklaces, pearls, rings, amulets, precious stones, timepieces and chronometric instruments, in particular clocks, watches, wristwatches, rim clocks and their parts, precious metals and alloys thereof, in particular sculptures of precious metal, jewelry boxes of precious metal