I have a Vintage Bulova 23 watch and I want to remove the cover. This watch has small notches around the front of the bezel. I have a Watch Opener set and it is supposed to open cases with holes, oystger cases, polygonal cases, slotted cases, and & rolex watches. None of these fit my watch. I attached a picture of this watch for your review. Can someone please let me know what tool I need to remove this cover and where to buy it?