Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Red Magic 42mm 645.CF.8513.NR

The Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Red Magic, reference 645.CF.8513.NR, represents the apex of Hublot's avant-garde watchmaking philosophy expressed in a 42mm tonneau silhouette. Introduced as part of the Spirit of Big Bang line — itself a reinterpretation of the iconic Big Bang round case into a bold barrel shape — the Red Magic variant pushes the boundaries of material science and mechanical artistry simultaneously. Ceramic construction, skeleton architecture, and a flying tourbillon with a five-day power reserve combine to create a watch that is as technically serious as it is visually arresting.

The 42mm ceramic case of the 645.CF.8513.NR is machined from high-tech black ceramic, a material Hublot has mastered over decades of research and development. Ceramic is prized in haute horology for its near-impervious hardness, deep and consistent coloration that never fades, and its hypoallergenic comfort on the wrist. The tonneau shape, with its gently curved lugs and polished chamfers contrasting against the satin-brushed flanks, gives the Spirit of Big Bang a three-dimensional sculptural quality that photographs cannot fully capture.

At the heart of this reference is a tourbillon movement endowed with a five-day — approximately 120-hour — power reserve, a genuine feat of micro-engineering. The skeletonized dial removes virtually all of the movement's bridges and plates, leaving only the essential architecture visible through the sapphire crystal. Every oscillation of the balance wheel inside the rotating tourbillon cage is fully exposed, transforming the watch face into a kinetic tableau of wheels, springs, and bridges finished to a high standard.

The ceramic bezel follows the distinctive Spirit of Big Bang shape with integrated H-shaped screws — a hallmark detail that ties this model back to the original Big Bang DNA and signals Hublot's design language at a glance. The watch is presented on a fabric rubber fabric strap, a layered construction that combines textile texture and tactile comfort with the durability of rubber, keeping the overall presentation light and sporty while remaining appropriate for dressy occasions.

Buying the Hublot Spirit of Big Bang Tourbillon 645.CF.8513.NR from Bizak & Co. means acquiring a brand-new example from a trusted luxury watch dealer with a commitment to authenticity and competitive pricing. Our team of specialists is available to answer detailed questions about this reference, arrange secure shipping, and ensure your purchase is backed by the confidence and service that collectors expect from a premier dealer. Reach out today to secure this exceptional tourbillon at our best price.