Reports have surfaced that Russian billionaire Roman Abramovich is the proud owner of the 557-foot ship, which Blohm + Voss Industries would not confirm.
"Our company is not allowed to talk about it," a company representative said.
Regardless of the owner, the Eclipse is now in first place on the list of the world's largest yachts. It reportedly features a missile-detection system, two helicopter landing pads, a swimming pool and a submarine that doubles as an escape pod.
It also features an armor-plated master suite, as well as bullet-proof windows to keep its master and commander safe.
According to London's Daily Mail, the Eclipse was designed to overshadow the world's former largest yacht, a 525-foot super-cruiser owned by the Sheikh of Dubai.
Here's a look at the remaining nine of the Top 10 largest yachts in the world.