Algodoo

VERY GOOD

Hmmm Nice concept but to be chrologicaly accurate(chonology is the study of time)
60 seconds in a minute (second hand is 60 RPM)
60 minute in an hour (minute hand is 1 RPM)(RPM is rotations[revolutions] per minute
12 Hours per revolution of hour hand( hour hand is 0.083333333 RPM)
and making a mechanical version is neigh impossible but pretty boss.
Try checking out Ravencrow's Cukoo Clock series!
(If you want mechanical imspiration try out Ravenpluker!)
Both are mechanical geniuses!