This unusual clock has a story to tell.
It was designed to be an extraordinarily accurate instrument, so accurate that other clocks could be set from this one. It is never re-set, merely wound, and it has been ticking away for over 250 years in this precise spot -- it can't be moved lest the movement disturb the clock's operation.
This image was taken at 11:28am on Saturday, September 20th, 2008. The arched window above 6pm says "Samedi" -- Saturday -- and the small square window at 9 o'clock says "20". The clock's hands clearly indicate 11:28.
There are electronic quartz watches made in the latter part of the 20th century that can't boast that kind of accuracy.