Like a wallet or a washing machine, a clock is one of life's basics that doubles as a style statement. As for what you want your timepiece to express about your taste, there's no shortage of faces to choose from. Vintage French furniture fans might flip for the Jacques Adnet–inspired black leather hanging clock from the fifties. Meanwhile, more buttoned-up types will want to invest in Arne Jacobsen's 1971 classic, originally designed for the National Bank of Denmark. And for those who really want to get their hands on time, there's the blackboard clock, which puts the writing—in this case, yours—on the wall.