Had to buy it from someone
I bought it from TheAmmoniacal few years ago.
The mirrored display is surprisingly readable
I just wrote an email to the last place (I could find) that claims to have the display in stock (but does not ship internationally). They have 2. I wonder if I should get both in case someone else needs one. The price is not great €50.
Update:
I ordered the module from them (they are now out of stock). It is 2015 new “BL 12864G2 ERNHn“. They come on their own module. Desoldering was tricky (rohs?!).
All went well and my meter is back in business.