Welcome to the Forum..........it all depends on just where ( what number) the series started at for any particular model, as once the numbers go through their series, and the NEXT prefix comes up, they of course start at "0" again.......we see folks get all excited from time to time "thinking" they have a LOW number, when it is the next series in sequence...yes, does LOOK cool and you may 'fool' someone else, as they say, "they all have a story..."
normally LOW numbers, that low, are "in the family, or in the factory...." :wink:
follow up , looked in the RENE and they started at #780-00001 in 1989...........yours falls in 1992