King James Version
Read in contextAnd all the days of Seth were nine hundred and twelve years: and he died.
All translations
5 of 5 translations contain this numbered verse.
And all the days of Seth were nine hundred and twelve years: and he died.
All the days of Seth were nine hundred twelve years, then he died.
and all the days of Seth were nine hundred and twelve years: and he died.
And all the days of Seth are nine hundred and twelve years, and he dieth.
So Seth lived a total of 912 years, and then he died.