From the books...
The tub holds 12 gallons of water and is rated for an 8-9 pound load. There are three vanes on the Energy Disc and it moves in a pulsating motion at 600 rpm on the driveshaft, pulsations occur at the rate of 1800 per minute which creates the power surge action and forces the water through the clothes. Since the motor simply reverses for spin, that rate is also 600 rpm.
In real life...
The tub seems smaller than than their stats would lead you to believe, we should have weighed the load to see what it really was.
The spin seems slower than 600, perhaps it's the narrow tub and the visually large disc in the bottom moving that throws off the sense of speed. In any case, because of the narrow tub, the spin result was just OK.
Simple multiplication gives them the 1800 pulsations/min. figure but I don't think it has much bearing on the performance. It's very cool to watch, but it's very prone to overloading and much like an overloaded Frigidaire pulsator, performance suffers.