to cool, had not seen that, most tube clocks made with nixie tubes, those tubes that can display, inside of them, the numbers 0 through 9, and clocks, seconds included, can be built from there.
lots on that site by the bay, or used to be anyway. cause i only use tubes for sound, i am far from an expert on those types, but they would sell long, flat, pieces of wood, pre wired for the nixie tubes, that mostly came from russia.