When I bought the 27 Seamaster on Ebay 2 years ago for $305.00
There was no title...
It had a Florida registration number which we tracked down
to dead people!!

There are companies that specialize in title work.
It cost me $200 clams, but as it worked out I'm titled as the
original owner from 1968 at the age of 14....

These services range from $200 to $400 just Google it...
Good luck,