The only reason I am give this one a 4 out of 5 is that the back opens before the face.  On this type of watch it should open the face first then the back.  It is a lovely Hunter Case Skeleton  Mechanical Movement, the only improvement in style would be going to the earlier  IIII instead of the IV but only reeanctors would care about that.  It is my daily carry watch and I do love it and enjoy it even with the one aggravation.  I just brace the back when I open it to check the time.  By the By always press the release when you close a hunter case to prevent wearing out the latch.