Ulysse Nardin

I recently purchased a Maxi Marine Diver (December) and of course love it. My question is is there a way to verify when this watch was actually made? Is there any cross reference by using the serial number? I have heard of stories of watches sitting at AD... 

I suppose the case number can shed some light. My case number is 19XX. Purchased watch in Dec 05. Regards Sooks