Following the debut of its Destination Moon, Swiss watch brand MB&F (Maximilian Busser and Friends) unveils another horological masterpiece with an updated variation of their Horological Machine No. 6 that was first introduced back in November 2014 with the “Space Pirate.”

This time styled in an “Alien Nation” theme, that takes cues from an unidentified flying object that crash-landed in Roswell, New Mexico in 1947 — the futuristic timepiece reflects the spacecraft with its sapphire crystal profile and reinforcing elements in Grade-5 titanium, where it required twelve separate blocks of sapphire crystal to be machined and polished over 510 hours.

Inside the case highlights the crew of six aliens, with the arms and necks notably finer than grains of sand and required up to 34 hours to complete. Each of the six aliens is individually modeled and hand-sculpted in white gold by engraver Olivier Kuhn.

The watch’s crystal-clear case also reveals the radical HM6 engine, a highly complex construction of 496 finely-finished components that boasts a 60-second flying tourbillon with retractable shield, where the mechanism drives twin hour and minute domes rotating perpendicularly to the movement.

Extremely limited, four unique variations of the timepiece in colors of green, blue, purple and turquoise have been crafted, with its retail price listed at $500,000 USD.

You can learn more about the “Alien Nation” Horological Machine No. 6 here and in the video below.

In case you missed it, this is the most expensive Rolex Submariner ever sold.

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