Panerai PAM237 Luminor GMT "Ghost". This is pretty much like a PAM88 but has a black sub second dial vs the silver one. The reason this is called a ghost is because it's not part of any Panerai literature, catalogue, or website. Only 400 of these were ever made in 2005. Another name for this model was the Brad Pitt because he was seen wearing this reference and it was rumored that this run was commissioned for him to give to friends and family much like the Slytech for Stallion.