They have dependable 31-day key-wind movements. You wind them once per month. They are totally mechanical and are NOT battery operated.
The movement is driven by the springs you wind instead of by the weights. The chimes are created by two hammers hitting two chime pin rods.
Chain Driven Movement
This movement requires that chains attached to weights are pulled down to raise the weights The weights will then fall over the course of time and power the clock.
Adjustments to set the time and care of the clock are the same as key winds.
A timepiece that uses an electronic oscillator and a quartz crystal to keep accurate time.
An electric current, typically from a battery, passes through the quartz crystal causing it to vibrate at an exact frequency which drives the clock movement.
When moving your clock you should remove the pendulum so you do not break any of the inner components. When removing inner components from your clock you should wear gloves to prevent corrosion on inner components.
When cleaning your clock you should never attempt to clean the inner mechanism of the clock or the dial of the clock.
This may cause damage to the dial or bend the clock hands. Your grandfather clock should be sitting on a solid level surface preferably next to a wall to prevent tipping. Your wall clock must be level to function properly.
You should never expose your clock to any kind of heat.
Keep your clock away from direct sunlight, fireplaces and vents where heat can directly hit your clock. When winding your clock you should never wind very quickly.
Winding should be done very slow and steadily. You should always try to wind your grandfather clock the same day you started the winding.
When setting the hands on your clock you should only use the minute hand and this should be done going forward not backward very slowly.
You should always keep the case closed on your clock to prevent dust buildup in the inner components. A key wind clock should be cleaned professionally every 2 to 3 years.
Stricking the Correct Hour
If the clock is new, allow it to operate for several hours before making any adjustments.
If the strike is off, grasp the HOUR HAND ONLY (short hand) and rotate it forward or backward to line up with the correct hour on the dial indicated by the number of times the hour strikes.
Rotating this hand independently will not harm the movement.
Then adjust the hands to the correct time by rotating the minute hand (long hand) clockwise being sure to stop at each hour and half hour to allow it to go through its chiming process.