Mark Zuckerberg's watch, the De Bethune DB25 Starry Varius Aérolite, costs an estimated $260,000, and only five are produced a year.

Earlier this month, the 40-year-old tech tycoon posted an Instagram snap with his wife, Priscilla Chan, in which he sported another luxe time piece on his wrist. Eagle-eyed followers quickly clocked it as a pricey Patek Phillipe watch — a 5236P model, which costs more than $141,000, to be exact.