It can be recognized by its great balance, exclusiveness and formal excellence.
3663 is surely a promising candidate between classic logos, due to its accuracy in terms of weight and shapes.
Excellent equilibrated logo blunt with thin line.
The key to success of 3663 is the stength of its color range, that breaks the space turning it into main protagonist.
3663 is a perfect sample of how a logo turns up to be a clear distinctive of its brand.