Ebay is the best place to find them. There are 3 up there right now, though I am buying two as soon as my Paypal comes through...
Just a warning though!!! The cases scratch easily, and are often expensive, as in $20 a piece.
The site is:https://www.blogagotchi.com/onetama/
I will be updating it daily once I receive the Tama in the mail this week. For anyone curious about what a tamagotchi plus swimmer edition looks like, this will be the place for you. Definitely a blog to follow. Thanks fo reading.
I found the source he sited. I can read Japanese (self-taught) and it basically said that 250 were released, though it had been planned that 750 would be released. So there are only 250 worldwide, which makes it one of the rarest tamas.
Well, I think I am going to use it but save all the packaging. That way, in the 200+ days once he/she dies, I can put it away and keep it in good condition. Now to find a case.....