The steppers for counting minutes and seconds, of which there are four. I think each one has 10 steps, some of which are jumpered to fire the solenoid again and skip past them to make them function as divide-by-6 counters. The one with the leaf switch mounted on top is the 10-second counter; the leaf switch is activated by some tabs on the center hub, which trigger it every minute, to enable the roll-over to the minutes relay. The one at far right is the seconds relay, which basically has only two possible positions: 0 and 5. Exactly why they did not just use a flip-flop alternator relay there boggles the mind. These too are semicircular, and have a three-sided contact.(Nobody (NOBODY))