Authentic – Paul pictures. Vintage. There is a clasp that opens. It is a teeny bit loose. It never affected the function of the bracelet. You can certainly go to a jeweler and have it tightened, that’s a very easy fix. It never really bothered me. This is vintage and has mild scratching throughout the bracelet. I absolutely loved wearing it. If you have any questions, or need additional pictures, please ask. Comes with the David Yurman dust bag. I am open to fair and reasonable offers. Only please, if you do not present a fair offer, I will politely decline.