No those classes are not specialties, during your AOW course you did 5 adventure dives. Deep and Nav. plus 3 others that you decided. These dives were dive #1 of each specialty.
Nav. has a total of 3 dives for the specialty leaving you 2 more to do and Deep has a total of 4 leaving you 3 other dives. With each dive having specific task to do during the dives.
I would recommend getting specialties in Deep, Nav., and Peek to really make you a better diver.