Board Thread:Game News/@comment-25392421-20140919134419/@comment-24568135-20140926150340

They are saying it has been fixed. The length started out at 10 days, and a few days into it, it was extended.

1680 is the most Dragoonies you would have been able to get...IF you only got the Dragoonies and IF you didn't sleep for 10 days, and IF you didn't miss any of the times that a chest would have appeared.