Confirming Variety Of Satsuiki

Yea sitting at my computer with no other reference, the flowers looked similar to me to Chinzan. Admittedly I don't have one in flowers yet this year for direct comparison.
Looking at and comparing the leaves (thank you @Deep Sea Diver), I'd agree it does not look like chinzan to me now.

Most southern indfica's that are popular in states like Georgia are actually early Belgian indica's under other names. And some early Belgian indica's were heavily influenced by satsuki. This one probably is, because it has only 5 or 6 stamens.
But those type of azaleas have a more upright growth habit because of some Formosa-type/Hirado-type genes. It seems unlikely this plant was imported from Japan. This is older material and the Japanese professionals do not grow their material this way.

Thank you for all the great information! I did not expect this question to generate such robust discussion. This just reminds me why this forum is my go to and why I enjoy bonsai so much. It's all about the learning!