How can you tell a fake Patek Philippe Aquanaut?

To tell a fake Patek Philippe Aquanaut watch, first look at the case. Created in-house and by hand, real Patek Philippe cases will feel substantial. There will be nothing slight or irregular about them. Make sure the crown (the knob used to set the time) and pushers (buttons used to control features such as a stopwatch function) work properly, as the ones on fakes are often just decorative. Case backs are generally not engraved or decorated (with the exception of limited-edition styles), and importantly, serial and model numbers will only be printed on the inside of the watch, never on the back. On 1stDibs, shop a variety of Patek Philippe watches.