Roman Numeral Gear Wheel Wall Clock

Three cogwheels locked together in the middle

An open metal ring carries Roman numerals around a broad outer band, and inside it three large cogwheels sit in a triangle, their teeth overlapping where they meet. The hands turn from the middle of the uppermost pair. Everything is cut from flat black steel with nothing behind it, so the wall fills the gaps between the teeth.

The cogs are fixed rather than turning, and at this scale that hardly matters: what they do is give the middle of a large open clock something to hold, which a plain spoked centre does not. Over a fireplace, in a stairwell or on a workshop wall the pattern reads from a long way off.

Two sizes are available.