How to get this knot??
As per the title, how would I achieve this knot? I guess it's a four in hand, but whenever I try to get a 'longer' knot the tie ends up being ridiculously short
It could be a four in hand. If that's the case you might need a thicker quality tie to achieve the effect.
I think it might be a half windsor, potentially, as the knot is quite symmetrical - though I think a thinner tie might be required to get this effect if you are using the half-windsor.
If the length of the knot is your concern, simply wrap the tie around the knot twice (before pulling the tie through) as this will give a slightly thicker and longer knot.