The iconic Jubilee Clock in Harlesden will be removed from the town centre so it can undergo vital repairs.
The timepiece, which dates back to 1887, was damaged after a bus crashed into a shop in May.
At least 13 people, including two pedestrians, were injured in the accident.
The clock will be removed on September 29 and will be reinstalled four to six weeks later.
Safety barriers will be installed while the clock is being repaired.
Jubilee Clock was relocated to a different spot in the High Street last year after it was moved from its original position on a traffic island to allow a £4.5million regeneration project of the town centre to take place.
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