Description of Main Components of The Gadget....

source:http://electronics.howstuffworks.com/electronic-gadgets-channel.htm

There are five basic parts in this gadget. First is Weight or spring - This provides the energy to turn the hands of the clock. Second, Weight gear train - A high-ratio gear train gears the weight drum way up so that you don't have to rewind the clock very often. Third, Escapement - Made up of the pendulum, the anchor and the escapement gear, the escapement precisely regulates the speed at which the weight's energy is released. Fourth, Hand gear train - The train gears things down so the minute and hour hands turn at the right rates. And the last is Setting mechanism - This somehow disengages, slips or ratchets the gear train so the clock can be rewound and set.