The Hublot Big Bang ref: 911.JX.0102.RW.4099 features a transparent sapphire case with a diameter of 45mm. This model, released in 2021, is powered by the manual winding HUB9011 movement and includes a power reserve indicator. Limited to just 50 pieces, it showcases a unique design that emphasizes the intricate mechanics within. The watch combines modern materials with traditional watchmaking techniques, making it a noteworthy addition to any collection.