they are very rare indeed. the slightly more common model is the one with long crown stem that is often seen in the books. i've got no pic of that i'm afraid.
i bought all the museum pieces from 2001-2005 in the misguided belief that they might possibly be collectable at some stage in the future. i've only kept the 2002 Cosmic and 2004 Petrograd. a 2005 Centenary which i sold at a big loss last year was selling at a UK auction today for £800-1200(£3995 retail in 2005!!). a solid rose gold ltd ed chronometer at less than a 60's Constellation. i was very tempted
i'll be perfectly honest, i dont think its worth actively searching for an original as it could be a fruitless search. letting one fall into your lap is the best way.
good luck if you search
best
graham