Daca102090
Posted April 13, 2014 - 2:16am
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.