Unknown selfwinding 11afac.. Yankee or sea Clipper?

Hello fellow watch lovers i just picked up these beautiful 63Bulova automatic...i sometimes buy watches to sell but then have a hard time getting rid of them like this beautiful watch with this nice dial,btw does anyone know what its called when the dial changes color when the light hits it in different places??..anyway i was wondering if this watch was a Sea Clipper, i am pretty sure its not the jet due to the different lugs...