The Doctor kept the ormolu clock in the TARDIS console room, primarily during his first incarnation. (TV: An Unearthly Child, The Edge of Destruction, The Time Meddler, PROSE: Doctor Who in an Exciting Adventure with the Daleks, Doctor Who and the Crusaders, The Eleventh Tiger, The Chase)
When the fast return switch became stuck, the TARDIS attempted to warn her crew of the danger by melting the face of the ormolu clock, indicating that time was being taken away from them. (TV: The Edge of Destruction)
At some point the Doctor stopped keeping the ormolu clock in the TARDIS console room, but started doing so again in his sixth and seventh incarnations. (PROSE: State of Change, Cat's Cradle: Time's Crucible, White Darkness, Shadowmind, The Death of Art)
Other ormolu clocks Edit
Behind the scenes Edit
The term "ormolu" was never used to describe the clock on-screen, only in prose works, beginning with Doctor Who in an Exciting Adventure with the Daleks. In that novelisation the word is misspelled "ormulu", but it is spelled correctly in every other book except for The Gallifrey Chronicles, its final appearance.