Car racing and wristwatches have been linked together since the 1930s because racecar driving relies on accurate timekeeping to measure the outcome of the race. They have large dials to make room for the chronograph, with clear Arabic numerals. They often include bright, contrasting colors. Designed to withstand the rigors of auto racing, the cases are typically made from stainless steel and the bands are leather or metal. Racing watches are flashier than dive or pilot watches. Because of their bold look, they’re more suitable for casual than formal wear.