MERTON, Wis. -- If it were easy anyone could do it, but only a few still do. They’re Wisconsin’s remaining horologists. Horology is the ancient art or science of making – or fixing – timepieces.

Vintage clock expert Mohammed Ibrahim Damani has been struggling to design a "badam". That's his casual name for an almond-shaped cog, which controls the number of times a clock chimes every hour.