1 April 2025 THE PUREST BLUE: HUBLOT UNVEILS THE BIG BANG UNICO IN WATER BLUE SAPPHIRE April 1st, Geneva, Switzerland - As the king of advanced and experimental materials, Hublot once again demonstrates its unrivalled mastery of sapphire crystal and the many colours it can take on with the Big Bang Unico Water Blue Sapphire, a limited edition of 50 pieces. Big Bang Unico Water Blue Sapphire VIEW FULL DETAILS It was less than a decade ago that Hublot first experimented with the idea of having a watch case crafted in transparent sapphire. Never content with simply maintaining the status quo, Hublot went on to develop a wide palette of coloured sapphire. A laborious process, creating new colours of transparent sapphire requires far more than simply switching pigments. Each colour requires finding the precise formula and adjusting the process accordingly, to ensure a qualitative result both aesthetically and functionally. The challenge is further compounded by the complexity of the Big Bang’s unique layered construction. Water Blue sapphire marks the latest development from Hublot’s R&D department and its mission to keep finding new creative avenues by making the impossible a tangible reality. A light yet intense hue, Water Blue sapphire evokes tropical, crystal-clear waters, taking the wearer on a sensory voyage. Measuring 44mm wide, the case and bezel are matched by the translucent blue rubber strap, as well as the blue accents on open dial’s indexes and hands. The Big Bang Unico Water Blue Sapphire is powered by Hublot’s first in-house developed and manufactured calibre, the Unico. Built with a contemporary architecture, the automatic integrated chronograph movement with a column-wheel clutching system is composed of 354 components, simplified to ensure reliability and robustness. Its bi-directional winding system efficiently helps reach the Unico’s power reserve of 72 hours. For the Big Bang Unico Water Blue Sapphire, the movement is finished in a sleek grey tone to enhance the visual brightness. Read more The Big Bang Unico Water Blue Sapphire is a limited edition of 50 pieces, available at Hublot boutiques and authorized retailers. Online and in Boutique exclusive Includes a Hublot complete service. The Hublot Complete Service ensures our select watches continue to move with precision. Learn more technical specifications case reference 421.JL.4890.RT Size 44 mm case Polished Water Blue Sapphire Crystal bezel Polished Water Blue Sapphire Crystal water resistance 50m or 5 ATM crystal Sapphire with Anti-reflective Treatment dial Polished Transparent Skeleton movement movement HUB1280 UNICO Manufacture Self-winding Chronograph Flyback Movement with Column Wheel power reserve Approx. 72 Hours strap & clasp strap Transparent Water Blue Lined Rubber Straps clasp Titanium Deployant Buckle Clasp LATEST NEWS HUBLOT UNVEILS TWO WINTER-SPIRITED WATCHES: THE BIG BANG UNICO WINTER SAPPHIRE & THE BIG BANG UNICO WINTER TITANIUM CERAMIC November 17th, 2025, Nyon, Switzerland – This season, Hublot turns up the energy while temperatures drop with the launch of the Big Bang Unico Winter Sapphire & the Big Bang Unico Winter Titanium Ceramic. The Hublot Winter vibes are back. Since launching the first Big Bang Unico Summer editions in 2017, Hublot has set the tone for unforgettable seasonal experiences. Now, winter has claimed its place in the brand’s DNA. Crafted in sapphire or titanium and ceramic, featuring icy white and glacier blue tones, the new Winter Editions represent frozen elegance with a shot of adrenaline. As a subtle nod to the season and a signature on Hublot in-house Unico movement, the timepiece features a uniquely designed snowflake-shaped oscillating weight, visible through the case-back. learn more HUBLOT INTRODUCES THE BIG BANG UNICO BLUE CERAMIC CARIBBEAN A FUSION OF OCEANIC INSPIRATION AND MECHANICAL MASTERY November 12th, 2025 – New York, United States – Hublot sets sail on a voyage of infinite blue with the Big Bang Unico Blue Ceramic Caribbean — a timepiece inspired by the horizon where sky melts into water. More than a watch, it is a meditation on color and form: the shimmer of sunlit lagoons, the quiet depth of the open sea, and the luminous skies that arch across the Caribbean. Crafted in radiant ceramic, the piece captures the timeless allure of the sea. learn more