Bokey TimeLS Factory presents the Hublot Big Bang 431.OM.1338.RX 20th Anniversary Edition, a limited commemorative timepiece celebrating the iconic legacy of the Big Bang collection.
The watch features a newly developed 43mm case based on original new molds. Compared to market versions that use older 44mm cases derived from the 301.SB.131.RX platform with more protruding chronograph pushers, this edition adopts a fully redesigned ergonomic structure with refined proportions and enhanced detailing. The case includes larger polished bevels and measures 43mm by approximately 15mm, faithfully restoring original specifications.
The date function has been upgraded through movement modification, allowing the date window to be correctly positioned at the edge of the dial in line with the original design. This corrects the misalignment found in standard market versions.
The three o’clock chronograph subdial is also restored to a full-size circular format, consistent with the original configuration. Unlike standard versions where the subdial is reduced due to layout constraints, this edition maintains correct proportions and visual balance.
It is powered by the HUB1280 automatic chronograph movement, delivering precise timing performance and a 72-hour power reserve, representing a high level of mechanical stability and refinement.
The watch features a quick-release fluororubber strap system, allowing effortless strap changes while ensuring comfort and a modern sporty aesthetic. The strap is made from imported fluororubber material, offering improved softness and wearing comfort.
The sapphire crystal provides high transparency and anti-glare performance, ensuring clarity and durability under daily use.
To commemorate the 20th anniversary of Hublot’s Big Bang series, this limited edition integrates signature design language with advanced horological craftsmanship, paying tribute to innovation, heritage, and breakthrough engineering in modern watchmaking.
