I believe this is an Academy Award "M". This is a tiny little watch like the "KK", smaller than the "A" or "B" size. The lines of the lugs look different at different angles so I will add a second shot.
The case is 10K gold filled and dated stamped L1. The 5AD 21 jewel movement is dated stamped L1 as well. The movement is working, it started up when I took it out but there is something wrong with the stem. It will turn the hands but does not set back in to wind. I will be looking into getting that fixed. The case didn't come with it. It is a recent purchase as well.