Comment by andrewgleave

Interestingly, I met George Daniels a number of times (creator of the co-axial escapement). He asked me to record a video on my phone of a model he created to illustrate how the escapement works:

https://www.youtube.com/watch?v=PVhSQ_Azkr8

Not the best video you'll find on it now, but he was a fascinating man.