The date code sure does look like N8, and bobbee is right, most watches from the mid to late 70's had a model number instead of a name, seems that they were producing so many different styles tha they couldn't keep up with names.
For now, I would call this a 1978 Bulova Quartz...maybe contacting Bulova would get you more info?
Sorry boys, but I won't vote on this one unless an add comes to light. My experiences and knowledge are mostly pre 60's though I am picking up on the 60's. I've got a thing about quartz watches as it was a quartz that drove me nuts and made me look at vintage mechanicals so many years back. I'll never buy a quartz watch again in my lifetime even if it is a vintage Bulova. Again, Sorry but I have to pass on this one.
PS. pdl, It is still a cool looking watch, just wish it was an autowinder.
I wish it was an autowinder too. But in the days of mobile phones and many people who don't even wear watches it's a great watch to wear especially when you tell the same people it is 30 plus years old. It feel so solid and sits on the wrist very nicely.
One day I will own an auto winder :)