The World’s Thinnest Mechanical Watch Costs $440,000, NFT Included

If you’re going to spend a princely sum on a timepiece, you probably want something big, heavy, and complicated that won’t go unnoticed on your wrist. Which is why the new Bulgari Octo Finissimo Ultra is such an odd duck. It’s engineered to disappear on your wrist. The matte gray arm chronometer just claimed the…