
The Grandfather Clock Easter Egg can be unlocked by melee-attacking the clocks in Astra Malorum in Call of Duty: Black Ops 7 (BO7) Zombies. Read on to learn how to unlock it and discover the rewards you can earn!
List of Contents
Find and melee the Grandfather Clock in Museum Infinitum, The Luminarium, Archive of Orbis, and both clocks in Machina Astralis at Astra Malorum. Successfully hitting the clock will produce a bell sound.
| Grandfather Clock Locations |
|---|
![]() Located behind the Speed Cola perk machine in Museum Infinitum. |
![]() Located in the corner near the east entrance of the Luminarium. |
![]() Located in the east corner of the first floor in Machina Astralis. |
![]() Located next to the Perfusion Machine on the ground floor of Machina Astralis. |
![]() Located in between the entrance and the Stamin-Up perk machine in the Archive of Orbis. |
Once you've successfully hit all the clocks, the bell and ticking sound will shift into a loud, slowed-down rhythm. This completes the Easter Egg.
Upon completing the Easter Egg, all enemies will be slowed down for a minute. This is especially useful when you're overwhelmed by zombies or buying extra time during other Easter Egg objectives. You can repeat this process every round to slow down enemies again.

| Main Quest Easter Egg Walkthroughs | |
|---|---|
| Ashes of the Damned Easter Egg | Astra Malorum Easter Egg |
| Astra Malorum Side Easter Eggs | |
| Shiny Trinket Easter Egg | Nikolai Easter Egg Guide |
| How to Get Free Perks in Astra Malorum | Free Random Perk: Skulls Easter Egg Guide |
| Grandfather Clock Easter Egg Guide | DG-2 Turret Easter Egg Guide |
| Ashes of the Damned Side Easter Eggs | |
| Ashes of the Damned Side Quests | Ashes of the Damned Music Easter Egg |
| Lucidity Easter Egg | Plant Easter Egg Toxic Growth Easter Egg |
| Bear Footprint Easter Egg | RC-XD Easter Egg |
| Ray Gun Mark II | - |
Grandfather Clock Easter Egg Guide



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