'I understand the Patek 5970 (2004-2008) production volume is still lower than the much longer multi-decade production run of the strikingly similar (and beautiful) 2499, but I'm curious if anyone can add color as to exactly how many pieces may exist. '
Between 1950 and 1985 they made 349 PP 2499
I don't know how mane 5970 they made but it is for sure more than 349.
A guess, 1200 pce ?? -- 300 per year ? (they made more or less 500 pce 5070's per year)