Turret size difference :3
The only actual tubes you can see are held on with hose clamps. That is NOT hydraulics. Hose clamps would burst the seconds they see any meanigful pressure.
This is, as per usual when it comes to the turret basket discussion, bull. The hydraulic motor afaik is connected to the hull, the valves (which are alse in the hull) are electromechanical. There are no hydraulics entering the turret for what I know; the gun is electrically elevated.