It was a silver dial Seamaster ref 166.002 with a 565 movement, but looking back at it now, it was a pretty good re-dial, and the bracelet was a fake. At the time I never even realized the issues, and sold it on only because it was too small for me at 34mm.
I followed up quickly with black-dial ref 2639 (cal 265), which - by dumb luck - was all original. It's a lovely watch and I still own it.