Attachment 26471
Attachment 26472
https://www.youtube.com/watch?v=Jnha...5bUJG6bW1jL9Wg
An original wall clock with ambient dependable display light intensity.
I guess that clocks can be considered as some sort of measuring tool !
Video clip is only the visual presentation of real clock given in photos. Due to reflections, I was not able to make good video capture of real clock.