Sun super tach, finally found

First indication that it's not old is the case.
It's in a plastic box?

That's not saying 1970 to me.
It's not old, it's a retroline, but you can't get the retro's with the sun name anymore, I wanted a new one with the old look, so it will work for me. The one's at Amazon aren't in stock anymore, only the Bosch with no name.