Tomorrow marks the 100th running of the famed Indy 500 — and it promises excitement. There are a few watch brands intimately involved in the event, and one of them, Ritmo Mundo, which produces a great line of affordable Racer watches (including the tribute to Dan Wheldon watch, which you can read about here), also partners with several drivers. This year the brand is involved in a host of events and also wishes well to brand ambassador Ryan Hunter Reay as he goes after his second Indy 500 win.