John Mayer is one of the most well known singer-songwriters of his generation, so it shouldn't come as a surprise that the "Gravity" crooner's net worth is as high as it is. Mayer is known not only ...

Want more insider watch coverage? Get Box + Papers, GQ's newsletter devoted to the watch world, sent to your inbox every Friday. Sign up here. Last October, the watch site Hodinkee kicked off a ...