Introducing 'Watson' when a 'Gordon' clock is not quite big enough! but a Grand master or Double Gordon is too much!
Originally a 1938 Watt Meter and now transformed into a Mantlepiece Guardian...
Rather a lot of gears, and hidden amongst them is the original 'Series' / 'Parallel' knife switch used on the instrument, when connecting it up to the circuit under test. That little black and silver button on the right sequences through various patterns of lighting that sit behind the Nixie Tubes every time you press it.
As it is a bigger clock than most Gordons, it has 2 Verdurite Emanation coils, a Green one and a Yellow one for added measure. The RHS features a governer from an old Autopilot of all things!