Yes. The difference is that, in the past, people regularly had the case polished at the time of a service. With this case, there is not a lot of excess metal so the shape is easily worn away. Now they have become collectible, people are having the cases restored as bast as possible. If the metal has been removed, previously, that cannot be put back. Re-finishing them now, you just have to make the best job with what is left and this shows at the top and bottom edges, above and below the crystal. Many of them are now severely curved and that just can't be corrected.