I know the basics. Crown/rotor winds mainspring > mainspring stores energy > mainspring barrel cog is connected to motion works cogs > motion works is connected to escapement > escapement allows mainspring to release its energy in small increments.

But what gear does the mainspring barrel connect to first? Is it the center wheel? And then the center wheel has the cannon pinion on? Is it the escapement combined with the mainspring barrel gearing and center wheel gearing which defines how quickly the center wheel turns?

What is driven first, minutes, hours or seconds? What are the gearing ratios overall? How is it that the minutes, hours AND seconds hands can all connect to the center point? The gears overlap at that point? Or what mechanism lets them all work separately?

Thanks for any answers. Even partial ones.