13AE is from the FHF 8044, as is the 13AF. This example stamped for 1936.
Thanks admin for posting the pictures. This is a 13AE movement , 17 Jewel with a square date code which I am assuming from the style of the case is 1936. The case number is 5126889 and has the style of a 1933/34 Oakley case. I am guessing that with the inner second dial it is a medical watch. I have seen a similar dial and movement for sale on eBay USA.
any ideas on its identity ?
Terry, that conversation is best had in the watch forums.
If you'd like to add the watch there we can discuss at length and look to identify the watch in question. This section is for movements only.