Looks like a Talisman (Good Luck Charm) for Riches on one side and Good Health or Good Luck on the other side. I wouldn't say it has anything to do with witch craft specifically, it's just a good luck charm for those who believe in it.
http://www.magickaljewelryandtalismans.com/talismans.htm
Talisman Definitions:
http://dictionary.reference.com/browse/Talisman
1. a stone, ring, or other object, engraved with figures or characters supposed to possess occult
powers and worn as an amulet or charm.
2. any amulet or charm.
3. anything whose presence exercises a remarkable or powerful influence on human feelings or actions.
4. An object marked with magic signs and believed to confer on its bearer supernatural powers or
protection.
5. Something that apparently has magic power.
6. A trinket or piece of jewelry usually hung about the neck and thought to be a magical protection
against evil or disease
7. A object which is supposed to have magic powers to protect its owner; a charm
[French talisman or Spanish talismán or Italian talismano, all from Arabic ṭilasm, from Late Greek telesma, from Greek, consecration ceremony, from telein, to consecrate, fulfill, from telos, result; see kwel-1 in Indo-European roots.]
1638, from Fr. talisman, in part via Arabic tilsam (pl. tilsaman), a Gk. loan-word; in part directly from Byzantine Gk. telesma "talisman, religious rite, payment," earlier "consecration, ceremony," originally "completion," from telein "perform (religious rites), pay (tax), fulfill," from telos "completion, end, tax"
Alpha and Omega:
1. The beginning and the end. Rev. 1:8
2. The first and the last
3. the first and last; signifies God's eternity
4. the basic meaning of something; the crucial part
The beginning and the end. In the Greek alphabet, in which the New Testament was written, alpha is the first letter and omega is the last. In the Book of Revelation, God says, “I am Alpha and Omega, the first and the last,” meaning that God remains from the beginning to the end of time.
