The Hublot Big Bang ref: 455.JM.0120.JM features a transparent sapphire case with a diameter of 43mm. It is powered by the automatic winding HUB 6035 movement, which includes a tourbillon and skeleton design. This model is limited to just 10 pieces, making it a rare addition to any collection. The watch is set to be released in 2024, showcasing a blend of innovative engineering and aesthetic transparency.