Antique Ansonia clocks are a collector's item, with many models and styles available. Some Ansonia clocks are handed down as family heirlooms from generation to generation. Each Ansonia clock operates manually, using a mainspring that must be wound in order to tighten the spring and operate the clocks hands.There are four types of adjustments that can be made on an Ansonia clock in order to set it to the correct time.
Insert the clock key into the key hole and turn it clockwise to wind the clock fully.
Place the small end of the clock key into the small round opening on the clock face. The opening is generally near the top of the clock face by the "12." Turn the clock key to the "F" one turn to make the clock run faster. Turn the clock key to the "S" to make the clock run slower.
Place a thumb and forefinger on the nut at the bottom of the pendulum. Turn the pendulum nut counterclockwise one turn to make the clock run slower or clockwise to make the clock run faster.
Turn the adjusting wheel on the clock face one turn to the "S" to make the clock run slower or to the "F" to enable the clock to run faster.
Observe the clock for 24 hours, after adjusting it, to see if it keeps proper time. If it is still running too fast or slow, make additional adjustments.