Hublot Shaped Spirit of Big Bang Chronograph Magic Sapphire 42mm 642.JX.0170.RX - BRAND NEW

The Hublot Spirit of Big Bang Chronograph Magic Sapphire 642.JX.0170.RX is one of the most visually dramatic expressions to emerge from Hublot's celebrated Big Bang family. Introduced as a shaped, tonneau-form departure from the round Big Bang, the Spirit of Big Bang line distills the DNA of the collection — bold architecture, visible construction, and uncompromising material choices — into a silhouette that sits elegantly on the wrist while remaining unmistakably Hublot.

The defining feature of reference 642.JX.0170.RX is its case crafted entirely from sapphire crystal, a material so technically demanding to machine that only a handful of manufactures in the world attempt it at this level. Sapphire rates 9 on the Mohs hardness scale, making it extraordinarily scratch-resistant while simultaneously offering near-total transparency. The result is a 42mm tonneau case that seems to float on the wrist, its movement and architecture fully exposed to the eye from every angle — a horological magic trick that earns the "Magic Sapphire" designation.

The black index dial provides a purposeful contrast against the otherwise translucent construction. Dark hour markers anchor the dial visually, ensuring legibility while deepening the layered, three-dimensional quality that sapphire cases naturally produce. The bezel, also executed in sapphire crystal, continues the transparent theme around the entire periphery of the watch, while the rubber bracelet — a signature Hublot material choice — grounds the piece in wearability and keeps the overall aesthetic modern and sport-luxe.

As a chronograph, the Spirit of Big Bang 642.JX.0170.RX delivers genuine functional complexity alongside its sculptural drama. The tonneau case shape frames the sub-registers and pushers in a way that feels architecturally considered rather than incidental, reinforcing Hublot's philosophy that form and complication should amplify one another. Every detail, from the exposed case flanks to the pushers, has been designed to celebrate the movement within.

Buying this reference brand new from Bizak & Co. means acquiring the watch in perfect, unworn condition exactly as it left the manufacture — pristine sapphire surfaces, an untouched rubber bracelet, and the full presentation of a contemporary Hublot. Bizak & Co. specializes in sourcing and presenting exceptional timepieces at the best price, and the 642.JX.0170.RX represents a rare opportunity to own one of Hublot's most technically ambitious and visually arresting references. Reach out to our team at bizakandco.com to purchase online or to learn more about this remarkable watch.