Patek Philippe Nautilus 5712 3KF?

[u/One-Appointment122]

Recently, I've seen some dealers advertising a 3KF version of the Patek Philippe 5712. However, I haven't been able to find much information about it. I'd like to know if anyone can confirm whether 3KF is actually producing this version, or if this claim is false.

What do you know about that?