I have an Invicta 9937 with the SW200, the date can be changed, time can be changed, it auto winds, but the crown won't wind the movement up? Any ideas on how I can get the manual wind to work? Thanks!
It would most probably be something in the keyless works. Unfortunately, the dial and hands need to come off to see what the problem is but it quite possible is the little spring arm that holds pressure on the winding gears is out of place.
Find a tutorial on repairing the keyless works and take a look.