Eastern Java keris / Pamor Bendo Sagodo ??

[asomotif]

I bought this keris last year from someone who collected in in the 70's.
Only recently found time to restore the wrangka that was broken and glued with my favorit glue Bisonkit which looks like some kind of construction kit

I have seen this type of pamor before, but on this specific blade the rings of the nickel containing iron are not al the same.

There is one layer where this ring is very broad, and if you take a close look the other rings are almost invicible, although the contrast of the pamor is still pretty good.

Any comments ? is this bendo sagodo, or is it something different ?

Ps. any other ideas about the age of the blade ?

thanks and best regards,
Willem