I'm glad you folks like it. It's a wonderful medal! I have it around my neck. You'll find the medal also embedded in the center of crosses and even attached to rosaries and scapulars
I'm glad that we can share each others' sacramentals when they are not in conflict with our respective teachings. The origins of the medal are unknown--they may be pre-schism, though various things have been added to it over the centuries.
Holy Father St. Benedict of Nursia, pray for us!
If you decide to wear or keep one, have it blessed by a willing Orthodox priest. It need not be by a Benedictine (though I know there are EO Western-rite Benedictines). This is the approved prayer, though I'm sure your priest can adapt it as he wishes:
V. Our help is in the name of the Lord.
R. Who made heaven and earth.
In the name of God the Father + almighty, who made heaven and earth, the seas and all that is in them, I exorcise these medals against the power and attacks of the evil one. May all who use these medals devoutly be blessed with health of soul and body. In the name of the Father + almighty, of the Son + Jesus Christ our Lord, and of the Holy + Spirit the Paraclete, and in the love of the same Lord Jesus Christ who will come on the last day to judge the living and the dead, and the world by fire.
Let us pray. Almighty God, the boundless source of all good things, we humbly ask that, through the intercession of Saint Benedict, you pour out your blessings + upon these medals. May those who use them devoutly and earnestly strive to perform good works be blessed by you with health of soul and body, the grace of a holy life, and remission of the temporal punishment due to sin.
May they also with the help of your merciful love, resist the temptation of the evil one and strive to exercise true charity and justice toward all, so that one day they may appear sinless and holy in your sight. This we ask though Christ our Lord.
The medals are then sprinkled with holy water.