CS Factory Watch — mechanical watches | csfactorywatch.com

CS Factory Watch — mechanical watches | csfactorywatch.com

Mainspring, Balance Wheel, Escapement

A clockwork movement is a chain of parts that stores, carries and releases energy in equal steps, and the escapement is what makes it tick.

The mainspring sits inside a barrel and stores energy when wound. As it unwinds, it turns the first wheel of the gear train, which steps the speed down and the torque up toward the escapement.

The balance wheel is a weighted ring on a hairspring. The hairspring returns it to center after each swing, so it oscillates at a fixed rate. That rate is the watch's reference for the second.

The signature mark of this site, drawn as a plate

On narrow screens, swipe or scroll the plate sideways.

The escapement connects the two. With each swing of the balance it locks the train, then releases it by one tooth. The hands advance in these equal steps, and the impact of the pallet stones on the escape wheel produces the ticking sound.

A motion works train then turns the train's rotation into hour, minute and second indications on the dial. Every part in the chain depends on the one before it, which is why a dry mainspring or a worn balance staff shows up as a rate fault.

  • Mainspring and barrel: energy storage.
  • Gear train: speed reduction and torque transmission.
  • Escapement: release and tick.
  • Balance wheel and hairspring: rate reference.
  • Motion works: display of hours, minutes and seconds.

Further reading