Finding the right saddle to match your butt is always a major coup. That your ideal saddle happens to be OEM supplied makes it a rare double coup.
Now here's where it gets interesting. New bicycle buyers frequently replace the OEM saddle with something else. Bike shops generally give them a credit for the OEM saddle and throw it into a box to be sold for $10.00 or $15.00 or whatever they can get. If I were you I'd visit every Specialized dealer in sight, check their OEM saddle box, and buy up a stock of those things. When your present saddle dies (and someday it will) that exact model will be out of stock.