BLACK TIE MISTAKES:
NOT A BOW TIE
SEE PHOTO BELOW FROM THE NEW YORK TIMES:
A BLACK NECK TIE IS INCORRECT except for funerals.
THE WRONG WATCH, e.g. A SPORTSWATCH
Black Tie requires an appropriate dress watch, either a pocket watch or an elegant dress watch. NEVER A SPORTS WATCH; sorry, James! Maybe M did not have any alternative available....