The lugs are in superb shape, and the dial is just sublime.
Ok, the insert is a later one, and would deserve something more appropriate, of course, but the crown has a " + ". Not much more to do to have a superb specimen.
Now the question is to know if this is the most desirable reference in terms of small no crown guard Submariner...
I would well see a 6205 or 6536 Red above...
Best,
Nicolas