The RG3620Z is an upgraded version of the RG3520Z which it replaced. New features are the Dimarzio Air Norton and Tone Zone pickups instead of DiMarzio IBZ pickups, the new Super Wizard Prestige neck and the Atlantic Blue Burst finish. Other features include a mahogany body with flamed maple top and the Edge Zero double locking tremolo bridge. The most visually noticeable feature of the RG3620Z is the abalone decorative strip running down the center of the body. The RG3620Z was available only in 2009. It was replaced for 2010 by the RG4570Z.