I thought I better 'fess up and reveal the inner workings of the 'Clock'. It is, of course, a spoof and just consists of a slow running DC motor, a bit of gearing and an output shaft for a sweep seconds hand. I had this large blank wall on the model and needed to fill it with something and mousetraps and dickory-dickory-docks seem to go together!
Next picture: Capstan Motor (fig 40)
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