I bought a few of these Daytona 904L from Joshua (RLDS00911) he states these have the cloned Rolex 4130 movement.  I noted the "Rotor" was noisy and free spinning in the anti-clockwise direction (typical of the 7750).  I normally like to lightly grease the Rotor bearing on the A7750 movements, it makes them much quieter.   When I opened up the above Daytona, I found it's not a cloned 4130 movement at all! I want to remove the Rotor to grease the bearing but the obvious 3x screws are fa