Looking at the first video is worth it. He shows taking apart the Odin 12, which reveals a screwed-on back plate contacting the slide, and a "leaf" spring instead of the CX 12 coil spring. Seeing him adjusting the reeds' gapping and tuning doesn't tell us much without a translation, though.
He seems to compare the reeds to those other harmonicas, especially a Suzuki SCX, so are the reeds brass or phosphor bronze?
Tom