When you say 1200 grit my assumption is that you're referring to the DMT D8E 1200 grit diamond plate?
I've had to easily do hundreds of laps on a 1K Shapton ceramic stone which is an aggressive stone in order to reset poorly honed resto razors. Since there's no magic number of laps for bevel setting given each razor's different geometry, steel hardness, level of damage, etc, the number you've done already could definitely be appropriate. If it's getting better.........
If it's a 7/8ths to start and you're down to 4/8ths, that would be a different story.
Chris L