No upgrade to 32xx movements.
New 5 Hz caliber: 7135.
"Inside the cal. 7135 of the Land-Dweller is a double-wheel, indirect-impulse escapement christened Dynapulse. While on its face Dynapulse might seem to be Rolex’s take on the "natural" escapement, Dynapulse is not a natural escapement."
https://watchesbysjx.com/2025/04/rol...dynapulse.html