Celestial Dial is a key Item in Bloodborne. It was added with The Old Hunters DLC.
"A celestial dial that functions with the giant astral clock in the Grand Cathedral.
When the dial is held up towards the Astral Clock, the clock will come to life and reveal a secret to its curious interloper"
- Bring to the Grand Cathedral to reveal ??
- Use in front of Lady Maria's Chair to turn the Astral Clock to access the Fishing Hamlet.
- Dropped by Lady Maria of the Astral Clocktower
- The large clock has Runes all over it instead of numbers.