I picked this one up from the NAWCC meeting this past weekend. It hasn't been serviced yet, so the movt does look dirty.
The bonus for me in this case is the original bracelet, which I rarely find in this kind of condition. Most, in fact all of the 13AT's I have ever come across are in the Jump hour or direct read "White Prince" types of watches.
I really want to say Oakley as well, but apart from the dial which is a perfect match the case is somewhat different. The subject watch seems to have a step at the corners to the lugs were as the below adverts shows a smooth uninterrupted curve.
It could explain the movement and case year difference.
I know that this movement has a back plate marked for a 13AT, but I believe that it is really a 13AL movement.
The 13AT was a Jump Hour movement but uses the same back plate as the 13AL.
If there was an issue with the plate on the 13AL then a repairman would most likely have just swapped out the plate from a 13AT as the repair parts for those are near impossible to find and it would have been a straight swap, just not marked the same.
I don't think so, as this one has fifteen jewels, the correct number for a 13 AT jump hour mvmnt.Would love to see under the dial, as there must have been some mods to the pinions.
Or it may just be a 13AT that has not been modified for a jump-hour.
Anyone got a jump-hour case but no movement? PM me if so.
EDIT:- Case serial number in root record incorrect.
Internal case back SN starts with a "4", correct date is thus 1934.
As Shawn mentioned.
For date purposes, from 1923-1934 the internal case serial number (7 digits) is the one that counts usually.
From 1935-1946, the external case serial is the one, unless there is another, seven digit number inside!