セラミックス is Ceramics. That's the official website saying that.I dont trust Google translate and I don’t read Japanese.
I specifically asked about the bezel insert on the SN029 when it was released since Fratello Watches stated it’s NOT ceramics in their blog post, and I think it looks like ceramics. SEIKO then confirmed its not ceramics, but a chemical treatment.
There is no doubt in translation here. In this case I'm believing the website over what an employee said.Case material
Stainless steel bezel display plate: Ceramics
That's just about the LE's using cermet ^^