I spotted what appears to be an original Constellation 2852-9 SC. The crystal is OEM and all the other components appear original. The caseback in particular looks good to me. What are you thoughts?
That indeed looks more like a 50s Seamaster crown to me, I am used to that very "edged" Constellation crown, which if I am not mistaken, has 6 sides. Maybe this clover crown is also correct for this particular Connie? Hmm.