This is one I have been looking for and final found cheap on a BIN ebay sale. The case is yellow gold plated with a stainless steel back and M4 date code. The dial is a gorgeous design with arabic numbers at the corners and batton markers in between and a recessed gold inner circle accent ring. It has an 11ALC 17J movement also with an M4 date code. This was a "non-runner" but was actually running but the seconds wheel had fallen off. I replaced it and it is running strong. This is a hard to find model and I added this unusual NOS bracelet and leather combo. BTW if anyone wants some of these bracelets let me know. I purchased 270 of them at an auction all new.
1964 Sea King "AB" looks to be a match.
Nice watch well restored and nice band addition.
1964 Bulova Sea King AB
That looks great Jim, congrats!
1964 Bulova Sea King "AB"
Sea King "AB"