M&Co Five O'Clock

This beauty of a clock features only one number, but if you're working a normal schedule, it's the only number that matters. The M&Co Five O'Clock ($125), designed by Tibor Kalman, is 12" in diameter and features an aluminum case and dial, mineral-glass crystal cover, and German quart movement. That, and of course that one important number: 5, signaling the end of the workday.