Santo Domingo Rolled Turquoise Necklace-Is it real?

This is a necklace I purchased on line. I think the hallmark is for Joe Tortilita, a Santo Domingo silversmith that also does bead necklaces. What do you think about it being his work? I was thinking he may have done the clasp but someone else may have done the beadwork since he seems to mostly be associated with silver work. If it is Santo Domingo how old might it be? There is good patina and good color to the turquoise. photos are natural light and good color match to the necklace.

Looks good, nice necklace and enjoy wearing it.