Should help :)
https://www.youtube.com/results?search_query=e6b+flight+computer
The clock is based on an E6B flight computer, we are missing parts. It also has multiple layers.. (Think stacked plates)
The hand is a double trident. (14mins across the top fork 7+7) (6mins across the bottom fork 3+3)
-Need to continue the Tangent 23 pattern around the clock.
-The clock dates convert/reduce to post numbers.