The cross knot, or Christenson knot, is a seriously old school tie knot that looks similar to a four-in-hand but with more width. It was favored by Pierce Brosnan in his Bond movies and had a second wind because of it.
Why you want it- If you’re tying a cross knot then your showing off your sartorial prowess. This is best done in semi-formal situations and is good with a slightly wider collar. For how to tie it, check above.