The Tudor BB is made by one factory. All the dealers have access to it. It does come in two versions, though. One has a 2824 high beat (smoother sweep of the second hand. Same as the gen.) and a sapphire crystal. The other version has the 2813, lower beat (second hand does not sweep as smoothly.) and a mineral crystal. They both look pretty much the same. The 2813 version is cheaper, though. I would get the 2824 version.