How do you throw a long range hook exactly like Sugar Ray Robinson?

[OMGWTF]

Timing by the looks of it. You can see he is on the move so he doesnt over reach for it. He is also already coiled and on the turn off of already landing the right in a flurry of shots, low guard shots bringing the guys arms down. Its doesnt look like something he did from stand still it was an end move as the guys right came down and he backed out, Ray would release the front foot shuffle in to follow, land and twist in bodily behind the landed shot.

The actual technique of a longer hook not landing it in a real fight. How do you do it how does it differ from the short hook.