Real nice center sweep that is freshly serviced and keeping time. 1942 Surgeon that appears to be the more obscure dial style. Lumed full number dial. In 1941, it sported gold numbers on the dial. It appears that in 1942, the dial went to lume and shortly thereafter the dial changed to black or black/white with square blocks at 12, 3, 6, and 9 and the name changed to Black Hawk for the war years.
Watch appears all original with the exception of the second hand (which I actually like better than the factory original) and the band
In reply to Wow, well found, Jim! That… by neetstuf-4-u
In reply to So we thinking Blackhawk or… by mybulova_admin
That is a nice one Neetstuf. Can you confirm the jewel count? All the other 10AK's with a center sweep seconds hand posted on here have 16 jewel movements. Seems like yours would be either 16 jewels or 18 jewels. Does the train bridge on yours have a jewel for the center wheel under the bridge for the center seconds hand drive wheel?
In reply to That is a nice one Neetstuf… by 1955mercury
In reply to 17 J as stated in the ad. by neetstuf-4-u
I hate to bother you again, but I'm still puzzled by this movement and I don't have anything similar to look at. In the below photo where the yellow arrow points is a jewel that would not be used on sub-second hand 17 jewel movements. This movement is based on the 10AK movements without the center seconds hand. If Bulova added this additional bridge with one jewel in it to a regular 17 jewel movement, where did they remove one jewel to keep it a 17 jewel movement? Or if they added it to a 15 jewel movement, where did they add the other one to make it a 17 jewel movement?
In reply to I hate to bother you again,… by 1955mercury
Curious. I guess I just assumed it was 17J, but the movement isn't stamped with a jewel count. You are likely correct - I'm going to say it's a 16J like the A-11 Military Issue center sweeps. Good Call!