Help identifying r810

Interested in buying this r810, but have never seen one with this dial. Is it real or frankenwatch?

Thanks!

The applied IWC manual wind version of the ref 810 were teamed with high quality dials...

Yes, this one has the caliber 89. So it could be correct?

It's not the quality to known applied 810-c89 dials...or equally obtuse roman dials from the same period.

Thanks Catherine. So sound like it's not legitimate.

Could be a service replacement but they are not documented ( mk 1/2/3)...