I have acquired an 18k solid gold Accutron. It is in truly mint condition with an unusual dial. It has a rather sappy engraving on the back which I would like to remove. I understand it can be removed by buffing, but I do not want to end up with a "weak" back. Is it possible to fill the engraving by gold soldering and then buffing or would it be safe to just buff. Any experience any board members have with this process would be greatly appreciated. Thanks and kindest regards