Breitling Navitimer Cosmonaute, Ref. 816

I'm really angry with my AD :mad: because I ordered the 1513.51.00 Omega Constellation Double Eagle Perpetual Calendar, I paid in advance, and was waiting for the watch to arrive, but today I received a phone call from them, and they told me, that they were told by Omega Switzerland, that they can't sell this watch, as it's discontinued I still see it advertised in the Omega website, usually when a model is discontinued, they place "Sold Out" below the watch model...Is there any restrictions on ........

My dad mis-placed his old watch and we found it in my parents' house after 2 or 3 years.It was purchased new in 1973 and he wore it daily until 2005 when he was given a new watch.It's an Omega Seamaster De Ville.Any thoughts as to which movement it has?Also, he stopped wearing it because the case back essentially "wore out." There is a small fissure in the case which will allow moisture in if it is worn.What advice do you guys have as far as repairing it goes?Do I replace the case?I know a repa........