Maybe not for a whole bracelet, but for small/fine repairs you can use a fibreglass eraser (looks like a pen with a bundle of glass fibres in the middle).
When masking areas not to be plated, normally a lacquer is painted on to the areas that you do not want to be plated, then cleaned off with solvent after the plating processDoes anyone have experience with replating portions of a band? One of my watches has gold plating on some portion of each link. Is this something that masking tape can help with?