Since I have asked that question before, I wil respond with the information.
Yes, the 5070P is no longer in production. It was a one-year piece only.
How many were made? Only Patek know. Estimates vary between 100-250...its in that range. It is stunningly hard to find though one does see the occasional one or two for sale. Very rare watch....that rarity is also a reflection of its popularity. One doesnt see them floating around becase purists love it so much! Its a watch that, to me, stays with people who love watches rather than the speculator. But that does mean it carries one healthy premium