The left-back had made no secret of his desire to leave Dean Court and had looked set to join Watford after the Hornets had a bid accepted by Cherries chairman Eddie Mitchell late last night.
But the Addicks, who had twice failed with offers for Wiggins earlier this summer, jumped to the front of the queue when they revived their interest.
Wiggins subsequently signed a three-year contract with Charlton to bring to an end the saga surrounding his future.
In March, he had a transfer request turned down following news that Cherries had rejected bids from Watford.
His departure follows that of captain Jason Pearce and midfielder Danny Hollands, who also moved to the Valley.
FULL STORY IN TOMORROW'S ECHO.