Why does Panerai has terrible resale value VS Omega/IWC?

[JenaG]

Love their watches, but when the company was as hot as a pistol, they shot themselves in the foot with too many repetitive designs that the average Watch Buyer couldn’t tell the difference from one to the other. This went on for years.

When it comes to omega and IWC in terms of resale, their values suck as well. Unless you have a snoopy or few other hot ones, they almost always take a 50% bath when you walk out the door.