There’s a 7750 Chrono system shown here (in the midst of an IWC watch) The crown is at 3 and the minute counter below 12; hours above 6.
Ignoring all the start / stop functions, here is its driving system. As Art noted, revolving gear 8447 with a spring arm 8449 nudges intermediate gear 8844 one tooth, and that moves the minute hand in a semi-instantaneous fashion. The long spring 8495 is adjusted (by turning screw 8804) when the watch is serviced to align the hand with the 0 minute marker.
The heart-shaped cams you see on several gears are used in the reset-to-zero process.
FRANKLY FOR MOST OF US, THIS IS ROCKET 🚀 SCIENCE! Feel free to forget you’ve seen how the magic happens...
And for the skeptics, here’s how a chronograph can be used:
PS - giving the hand a nudge every 60 seconds might require less energy than continual running?