Both blue and white dial 5711 were fitted with the new caliber 26-330 SC in April 2019 all the white dial 5711s produced after that got the new movement
By: DOCSF : January 21st, 2021-05:39
5711/1R was also fitted with the new movement at the same time.
Usually the run out list will be public in March, but there was a leak in Jan 2020 that white 5711a was discontinued
So those with 26-330 movement are few. The 5711s were the only pieces, along with 5212a, that got the new movement in April 2019 (though hard to say when they were really manufactured and delivered, but sometime around there. Some say they weren’t delivered until the Fall, but only Patek will know).
However, it’s safe to say that white 5711a with 26-330 movement had a less than one year run. I don’t know if collectors really appreciate this, but it’s an interesting fact
I got my white 5711a with 26-330 movement in late Jan 2020 and was told it was the last one my AD would get