[Rolex] is this bracelet authentic?

I think it's real. There are such things as Rolex USA bracelets, these were made in the USA to reduce import taxes paid by Rolex. The clasp looks consistent with other Rolex USA bracelets, and the center links are folded like they should be.

I don't know how much it's worth, but probably less than the asking price.

Looks fake to me.

I dont think so. Clasp is way off without the rolex signature logo. A similar authentic bracelet like this should be roughly 500-1000 SGD depending on conditions like scratches or stretches. Not an expert tho

If you are looking for this exact similar design with the protruding crown clasp lock, do search up for 6251H. It should originally come with 55 stamped endlinks. Hope i have been helpful!