The project is costing $16,000.
The issue came to a head last year when the specialist who had been tweaking the clock advised the council he could do no more to keep it going given the mechanism's age.
He said the "technology was worn out."
So the hunt was on to find a company specialising in heritage-styled clock parts which would fit.
Havelock North company Lauranka was charged with finding the replacement for the council.
"The suppliers have replicated the existing face and hands as close to the original as possible," the council said.
The replacement is coming from Bodet, a 150-year-old French company which specialises in timepieces.