Welcome!! It depends on if it's high gloss HW on a Vernis bag or the polished brass on a mono Speedy. I'm not sure but I was told that vernis HW is plated and this can't just be polished. Dull brass HW could be fixed. In either case it could be sent to LV for HW replacement, ask in a LV store. I think you could also find some answers already in the FAQ section here. g/l