99.9% of sealyhams about today are bred for pet/show. And yes, they are fecking huge! They also look rediculous, with there over long coats.
Working sealyhams, the few that are still about.... are pretty much like they always were, big variations in size, some of the bigger dogs were always broad heavey dogs, but some (esp. bitches) are a neat compact size.
The AKC standard says they should be 23lb to 24lb. That doesn't take into account that a lot of show dogs are a few lb bigger then the standard. Its conceivable that a lot of sealyhams are 25lb to 27lb. THats bording draw dog st