No, you really need to look at details to authenticate Rolex bracelets. Please post good photos of the inside of the clasp, showing all details clearly (scrolls, coronet, engravings, date code, etc.), when you have them. There should also be a reference number on the back of the last link (e.g. 78360). Even when the bracelet is legit, one or both endlinks are often aftermarket, so post good photos of both end link engravings also.