That's a common interpretation, but one we view as incorrect. And as I pointed out, used as a year it fits quite well.
The only problem is that same "soon" message was believed by a lot of Christians back then until it became clear that there would be a considerable delay before any fulfillment!
Besides, there are other prophecies that do give exact years (in addition to the 666 one) that in retrospect were indeed accurate! If you're interested, you can see these at:
www.bci.org/prophecy-fulfilled
Peace,
Bruce