The Tudor Prince is a gorgeous classic watch, well regarded and collected by most afficionados today.  This particular example is well preserved and is working well. It is in the aesthetic state we found it, no polish done and  is in more than exceptional condition for its age.
 
*** The pictures may show the reflection of the camera lens, black spots mostly ***

Details:
 
Make: Tudor 
Model: Prince Oysterdate
Reference:  7990/3
Year: 1968
Material:  Stainless Steel 
Dimensions: 34 mm
Crystal: Plexiglas
Movement: Automatic
Bracelet/Strap: Leather New 
Box/Papers: No/No