I would have either asked to book the watch in whilst living with it in the mean time or a full refund. Both of which would have no doubt been refused.
Just demand your money back and see if they shuffle into action a bit quicker.
I had a PO bought new that had a date change issue. Was away from me for a total of 4 months over 3 visits to Omega UK.
I did the pre paid pack thing with Omega after the first time dropping it in myself was a waste of time.