When AKG introduced the "Teflon" capsule in the late 1970s, it conveniently retained the name "CK12" for that new capsule development. Hence the confusion in official AKG literature.
Your 422 and all other large diaphragm AKG tube
and solid state mics since the time of the switch over in the 1970s have used one of two new-style "CK12" Teflon capsules:
Either the standard issue "414" type, as used in all black-bodied 414s after the discontinued silver 414EB (this capsule is mostly described as rather gray and uninteresting sounding) or the Teflon capsule with revamped backplates, which is used in the C12
VR and 414 TLII mics.
If I remember correctly, the relatively recent reissue of the silver-bodied C414EB (it's actually nothing like the original C414 EB on the inside) also uses the TLII capsule.
Hope this helped.
Kind regards, Klaus Heyne