Marlon Brando's one-of-a-kind Rolex has been sold for more than $5 million — or has it?

Marlon Brando's Rolex GMT-Master engraved with the actor's name.

Denis Balibouse/Reuters

• Marlon Brando's Rolex GMT-Master was recently sold at Christie's for more than $5 million.
• The sale was put on hold, however, after the owner of the watch filed a civil complaint.
• The Rolex has distinct customizations that were made while Brando was filming "Apocalypse Now."

A rare Rolex GMT-Master worn by Marlon Brando in Francis Ford Coppola's iconic "Apocalypse Now"...