Sat, 12/23/2023 - 07:49 Tech Insider Altman's $480,000 watch was seen peeking out of his left sleeve at a Wired conference in 2018.Matt Winkelmeyer/Getty Images Tags Tech, sam-altman, OpenAI, Wealth, fast-investigations, news-holiday-save-2023 Source Sam Altman's $480,000 watch, the Greubel Forsey Invention Piece 1, is so rare o…