Aqua Disc
Quest Item · option 255 · 1×1 slots
Careful: item 690 exists under other options too, and they are different things. Aqua Disc (option 129), Aqua Disc (option 257), Aqua Disc (option 266), Aqua Disc (option 385), Aqua Disc (option 394), Aqua Disc (option 513), Aqua Disc (option 522)
Drops · 0 sources
Rates are what you experience: the server's drop multiplier is 1x.
Nothing in the game's drop tables produces this item. It may come from a quest, a vendor or a box.