Originally Posted by
773ER
As far as I know, the only 2-class ER's with the old seats are A6-EBV and ECB. There are still quite a number of 3-class with the old seats though. A6-EBC, EBE, EBG, EBJ, EBM and EBN and EBO all have the older first class and business class seats.
As above, there are several more listed on the (dated) fleet information thread. Do you have a source as it's good to keep an updated list?