In Shorts Gardens WC2 there is a water clock above a shop, a large tube of water shows the minutes and a single handed dial shows the hours. There is a series of figures below the clock who presumably used to move to celebrate the hour. The clock was made by Tim Hunkin and Andy Plant who made the clock back in 1981.
It would be nice if this clock was operational as the other mechanical clock in London was disassembled when the Swiss Centre was taken down earlier in the year.
If you know of other mechanical clocks in London, I’d be interested to visit them.