This limited-edition 51-30 Chrono is both superstitious and super collectible. Only the number 13 marks the hours on this doomed time piece. This watch is not all bad luck, though. Its pro-level chronograph and 30 ATM / 300m water rating give you the upper hand when you need it most. If you want to make a mysterious statement, make one that’s big, bold, black and gold. Only 13 available on US site and 6 available on AU site.