What's the masculine equivalent of Chanel No. 5? Everyone's opinion of a true "classic" might vary, but the norm is that anything that has genuine appeal and that has lasted more than 10 years is officially a classic. Throughout the years, many older colognes have still managed to stay in production and continue to be loved by a large majority of people. In homage to the great colognes that have graced the shelves for all these years, here is a guide to the classics.