On Its 20th Birthday, Louis Vuitton's Tambour Watch Gets a Makeover (and a Bit of Bradley Cooper)

There's a unique magic to turning 20. You're on the cusp of adulthood, possibly still at university, and thus filled with optimism about the world ahead of you. Such sweet, misplaced joy. But in the world of watches, 20 is no age. In fact, you're still a kid, kid. Jaeger-LeCoultre's two-faced …