In Cambridge we've got a clock called the Chronophage which is intended to be a sinister "eater of time" - the designer has done a good job of making it feel uncomfortable to look at. There's some detail here:
https://www.corpus.cam.ac.uk/articles/secrets-corpus-clockMy memories of what I've heard over time:
* The grasshopper escapement actually is the demonic insect that sits on the top, "walking" around the serrated ring.
* Although it's backlit electronically it's actually a fully mechanical design - including all of the weird things it does.
* The Chronophage itself blinks its eyes unnervingly.
* It sometimes pauses or ticks slightly backwards, then runs faster to catch up again.
* On certain special dates it does extra weird stuff.
* The "chime" is a metal chain dropping into a box.
There were three made in the series, this was the first one. I've always found it slightly unappealing aesthetically but also compelling - there's no arguing with the fact that there's always a crowd of fascinated observers looking at it.
My memories of what I've heard over time:
* The grasshopper escapement actually is the demonic insect that sits on the top, "walking" around the serrated ring.
* Although it's backlit electronically it's actually a fully mechanical design - including all of the weird things it does.
* The Chronophage itself blinks its eyes unnervingly.
* It sometimes pauses or ticks slightly backwards, then runs faster to catch up again.
* On certain special dates it does extra weird stuff.
* The "chime" is a metal chain dropping into a box.
There were three made in the series, this was the first one. I've always found it slightly unappealing aesthetically but also compelling - there's no arguing with the fact that there's always a crowd of fascinated observers looking at it.