Hublot Big Bang Perpetual Calendar 406.OM.0180.RX Skeleton Index Black Ceramic Bezel & Rose Gold Case Rubber 45mm BRAND NEW

The Hublot Big Bang Perpetual Calendar 406.OM.0180.RX is one of the most technically and visually commanding expressions in the entire Big Bang collection. Launched as part of Hublot's commitment to grand complications, the Big Bang Perpetual Calendar marries a fully open-worked movement with one of watchmaking's most admired complications—the perpetual calendar—delivering a timepiece that is as intellectually satisfying as it is visually arresting. At 45mm in rose gold, this reference occupies the bold, assertive proportions that established the Big Bang as a cultural phenomenon when it debuted in 2005.

The case of reference 406.OM.0180.RX is crafted in polished and satin-finished rose gold, a warm, prestigious metal that lends the watch an unmistakable sense of luxury. The 45mm diameter gives the Big Bang its characteristic strong wrist presence, while the multi-part case architecture—a hallmark of the Big Bang DNA—showcases Hublot's engineering precision through visible screws, layered lugs, and a seamless integration of materials. The black ceramic bezel provides a dramatic tonal contrast to the rose gold, echoing the Art of Fusion philosophy that has defined Hublot since its founding.

At the heart of the dial lies the skeleton index presentation, where the movement itself becomes the centrepiece. The open-worked architecture reveals the intricate gear trains and bridges of the perpetual calendar mechanism, allowing the wearer and observer to appreciate the mechanical complexity within. Perpetual calendar displays typically include the date, day, month, and leap-year cycle, automatically accounting for months of varying lengths—a complication that requires the highest level of movement engineering and exemplifies serious watchmaking craft.

Powering this timepiece is an automatic movement, ensuring effortless daily winding through the motion of the wrist while sustaining the precision that a perpetual calendar demands. Hublot's in-house movement development program has elevated the brand's technical credibility significantly, and the Big Bang Perpetual Calendar sits firmly within the upper tier of that accomplishment. The open-worked dial means every oscillation of the rotor and every tooth of the calendar mechanism is visible—turning the watch into a wearable mechanical theatre.

The rubber strap is a defining signature of the Big Bang line and speaks directly to Hublot's ethos of fusing haute horlogerie with contemporary wearability. High-quality rubber offers comfort, resilience, and a sporting character that allows the 406.OM.0180.RX to transition effortlessly from a boardroom setting to an evening event. The tactile contrast between the softness of the strap and the hardness of the ceramic bezel is intentional and refined.

Bizak & Co. is pleased to offer this reference brand new, complete with box and papers, providing full manufacturer documentation and peace of mind. Acquiring the Hublot Big Bang Perpetual Calendar 406.OM.0180.RX from Bizak & Co. means working with a trusted luxury watch dealer committed to authenticity, transparent pricing, and an exceptional client experience. Reach out to our team at bizakandco.com to secure this exceptional rose gold perpetual calendar today.