HELP!!! watermark on the vachetta of my mc shirley.

Can u post a pic? It'll be easier to help if we knew what we were working with. In most cases, a waterspot on unprotected vachetta is usually permanent. But as the vachetta darkens, smaller/lighter water spots do blend in and won't be as noticeable. IDK about larger/darker spots.

I've read some posts that said Magic Eraser has helped but again, it depends on the situation.