This is a watch i wanted for a long time and found it on Ebay. It is my birth year watch and is what I believe to be a.1964 American Eagle F. It is yellow gold plated. It is marked M4 on both the case back and the movement. I love the textured linen case, sheild dial with concentric ridges and star burst lines. It has some discoloration on the dial and a replaced crown.
Congrats on finding the watch you wanted from your birth year! A couple of 1964 ads.
American Eagle "F" looks like a match to me.

1964 Bulova American Eagle "F"
These two ads from 1966 show the pattern better.


1964 American Eagle "F" it is
nice one
Looks like you found a nice one.
1964 Bulova American Eagle F
One of my 60's favorites! 1964 American Eagle "F".
American Eagle F