Super Sailor Saturn
As she grows stronger, Sailor Saturn gains additional powers, and at key points her uniform changes to reflect this. The first change takes place in Act 39 of the manga, when she obtains the Saturn Crystal and her outfit becomes similar to that of Super Sailor Moon. She is not given a new title. A similar event takes place in Episode 168 of the anime, and she is given the name Super Sailor Saturn. A third form appears only in the manga, also unnamed but analogous to Eternal Sailor Moon.
(from Wikipedia)