In reply to The black substance is the by Reverend Rob
Thank you Rverend Rob for your important off-topic reply. I know this isn't the category for me to ask questions outside of the identification of this watch. I instanlty regretted touching the stud carrier. I guess the fact that this watch is keeping very good time (not calibrated but good for me) is just pure fool's luck. I don't think I will make any real investments in the watch making trade regarding equipment or training. But I do have an appreciation and fascination for it and will now leave the technical work to a professional. I am limited in my location at finding a decent watch repair person and will choose one carefully.
Thank you all who have chimed in to identify my Commander AO. I may now start looking for more Bulovas!
Cheers,
Randy