This particular watch that I made for Sam had this curious double wheel escapement, which I devised as a simple means of achieving the end I wanted. You have to remember that watches have a mechanical oscillator in them and you can hear this oscillator, tick-tock, tick-tock, tick-tock, tick-tock, tick-tock, but those watches don't keep such good time as earlier kinds of watches invented by John Arnold, which don't tick-tock, they only tick, quiet tick, quiet tick, quiet, but because they only tick on one vibration of the oscillation, then if you suddenly move the watch while it's on the dead vibration, it could stop and it won't start again, whereas a tick-tock watch can be made to start again and it won't have the dead vibration. So I wanted to produce a watch that would have all the qualities of the tick watch, but would at the same time go tick-tock. So I had to have two watches in one box, tick on one watch and tock on the other watch, but by that simple means I got this watch to keep time.