Work is under way to restore a landmark 200-year-old clock in Stockton.
The timepiece has been in the tower of Stockton Town Hall since 1803 but the winding device has become worn and prone to mechanical failure.
Specialist restoration company Smith of Derby is working on the clock after its latest breakdown.
They will install an automated electric winding system which it is hoped will ensure it carries on operating reliably.
The clock is due to be back up and running next month.
Stockton Council head of technical services Richard McGuckin said: "We currently have to wind the clock three times a week and this is when it is most prone to breaking down.
"The automated winding system will help avoid this and will also mean we can keep the original main clock mechanism intact."