Binding of Isaac: Rebirth Wiki
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This article is about the broken watch. For the normal version of this item, see Stop Watch.

Broken Watch is a passive item.

Effects[ | ]

  • Every 4th newly discovered room, slows all enemies and their attacks down to half their normal speed, but has a ~13% chance of speeding them up by 40% instead.
    • The effect is lost upon leaving the room, and not gained again if re-entering it.

Notes[ | ]

  • The effect is lost upon exiting and continuing the run.
  • (except in Repentance) Because of the slow effect, champion versions of enemies will be tinted the same color as all other enemies. This makes it much harder to distinguish certain champion types, such as those that explode upon death.
  • The player can abuse the Broken Watch to have the Broken Stopwatch trigger during any difficult boss fight by making sure that the fight is the fourth room since the last time the effect activated.
    • For example, if the third undiscovered room was the Mom boss fight, Boss Rush will be the fourth undiscovered room, resulting in it being slowed down. This necessitates skipping the Devil RoomDevil Room or Angel RoomAngel Room, however.
    • To trigger the effects of Broken Watch during the (in Repentance) Boss The Beast ingameThe Beast fight and do not have either the (in Repentance)Collectible Red Key iconRed Key or a (in Repentance)Cracked KeyCracked Key, you have to clear 1 room after the effect has activated, then explore every room in (in Repentance)HomeHome. Otherwise, after the effect has activated in a room, immediately go to (in Repentance)HomeHome and explore every room.
    • There is also the 13% risk of the room being sped up, so this strategy can rarely backfire.
  • If the slow effect triggers when entering The Boss Rush or (in Repentance) Boss The Beast ingameThe Beast boss area, it will be active for the entire Boss Rush/all four Horsemen and the Beast. This is also true of the speed effect.

Interactions[ | ]

  • (except in Rebirth)Collectible Glowing Hourglass iconGlowing Hourglass: The Glowing Hourglass does not reset the entered room counter: using it in a room where the Broken Watch is active and immediately returning without visiting other new rooms will not trigger the effect again.
  • (in Repentance)Lil ClotLil Clot / (in Repentance)Collectible Sumptorium iconSumptorium / Character Tainted Eve iconTainted Eve: Clots are moving and firing at normal speeds when a room is sped up. This can be extra hurtful as Tainted Eve, since the clots will not move in sync with her.
  • (in Rebirth) Collectible Stop Watch iconStop Watch: Overrides Broken Watch; the speed-up effect will not occur.
    • (except in Rebirth) Both the slow effect and the rarer speed up can trigger at the start of a room.
      • (except in Repentance) This results in enemies being slowed to around 71.8% of their original speed.
      • (in Repentance) This results in enemies being sped up by 12%.

In-game Footage[ | ]

Trivia[ | ]

  • The Collectible Stop Watch iconStop Watch is the repaired version of this item, and thus functions differently.
  • When the slow effect is activated, the background music is also slowed down to 70% of the original speed of the music.
  • When the speed effect is activated, the background music is sped up by x1.428571428 (Or 1 3/7).

Unlockable Achievements[ | ]


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