Crafted entirely in blue ceramic — from the 42 mm round case to the bracelet — this Big Bang Integral Sky is a compelling expression of Hublot's Art of Fusion philosophy. The monolithic construction gives the watch a cohesive, architectural presence, while the fixed bezel and push-button folding clasp contribute to a refined, purposeful finish.
At the heart of the watch sits the HUB1280 automatic movement, visible through the skeleton dial. The movement comprises 43 jewels and 354 components, delivering chronograph, date, hour, minute, and second functions. A scratch-resistant sapphire crystal protects the silver-tone dial, which is fitted with index hour markers and luminescent hands for reliable legibility.
Produced in 2024 and offered with its original box and papers, this timepiece carries the Swiss Made designation. The transparent case back invites a closer look at the movement's complexity, making the 451.EX.5120.EX a compelling choice for anyone drawn to the intersection of material innovation and mechanical watchmaking.