To get in any further, we have to pop the bearing apart. It's a little greasy, and features a plastic cage for the ball bearings—surely a special recipe designed to give the knob that luxurious, high-end slightly-resistant feel to it.

Lifting off the midframe reveals two springy posts opposite the switch. These springs even out the pressure so, no matter where you press, it feels the same.

We also scrape out a pancake vibration motor, responsible for the buzzy feedback you get when spinning or clicking the Dial.

The bit of the midframe holding the vibrator has a rubber O-ring, presumably for vibration dampening.