Definitely authentic!
If it is the same bag as in the pics provided in your original request, it is authentic. Date codes and countries made in will often have the same numbers on them. That number is not always a STYLE number but more of a date made and country made in number that they will use on many of the same styles. It is hard to explain. Perhaps Jojo21 can chime in here and explain it best. I am quite sure your bag is authentic.
I'll chime in, too. It's definitely authentic. Great Bag.