20.5" long. High-quality rose and yellow gold fill chain measures a full 1/2" wide. This material is a long-wearing 19th century alternative to solid gold; it's made by mechanically bonding a thick layer of real gold to a metal core. It's nicer and more durable than any gold plate made now. c. 1900. Was likely manufactured as an extra-fancy watch chain but makes a great necklace. Rose gold fill dog clip and huge (3/4") bolt clip was added; attach all your charms.