44. G-Shock

Casio's classic '80s digital watches never really went out of style, but starting in the late '90s, the once simple design opened up to new models, outside designers, and special editions. With the rise of the international streetwear scene, these ulta-durable rubber timepieces became an essential companion to the wayward cool guy.

G-Shock has been the preferred watch of military Special Forces ever since its appearance in the 1999 book and subsequent movie Blackhawk Down.