Board Thread:General Discussion/@comment-24001319-20131219075257/@comment-24282510-20131219091309

Kamikaze839 wrote: How about the correct answer: We don't know, we have not been given any information on his actual age aside from the fact that he was around when Unohana was still in the 4th Division, which makes him much much older than 110 years old.

More like well over 1000 years old isn't it? He was around albeit not in the 13 yet but in his early teens when Retsu Unohana was still the 1st Kenpachi which has been stated to be roughly 1000 yrs ago.