Hublot / Big Bang Unico SR_A

The Hublot Big Bang Unico SR_A brings British designer Samuel Ross’s SR_A language to the Manufacture’s Unico chronograph for the first time. Limited to 200 pieces in monochrome black ceramic, it reinterprets the 42mm Big Bang around a graphic, architectural vision while housing Hublot’s in-house HUB1280 Unico calibre.

Unveiled in Milan, the Big Bang Unico SR_A evolves the earlier SR_A tourbillon editions into a more versatile daily-wear chronograph. It aligns with Hublot’s Art of Fusion philosophy and echoes the 20th anniversary of the brand’s All Black concept, translating those ideas into a focused sports watch.

Key Highlights

• First SR_A signature model powered by Hublot’s in-house HUB1280 Unico flyback chronograph movement.
• 42mm satin-finished and polished black ceramic case with modular Big Bang architecture and 100m water resistance.
• New black structured honeycomb rubber strap developed specifically for this reference.
• Matte black skeleton dial with visible column wheel at 6 o’clock and open chronograph mechanism.
• Limited to 200 pieces, extending the SR_A collaboration beyond the earlier tourbillon editions.

SR_A design meets Unico engineering

The Big Bang Unico SR_A advances a partnership that began in 2019 and has produced three SR_A tourbillon editions. Here, Ross’s industrial codes are fused with the HUB1280 Unico Manufacture movement, a flyback chronograph calibre born in 2010 and now central to Hublot’s identity.

The 42mm case, 14.50mm thick, combines satin-finished and polished black ceramic with the Big Bang’s porthole bezel and H-shaped black-plated titanium screws. Sapphire crystals with anti-reflective treatment on both sides emphasise the layered construction, while 100m water resistance underlines its role as an everyday chronograph.

The honeycomb as architectural signature

Central to the SR_A identity is the honeycomb motif, a structural pattern seen in Ross’s sculptures, furniture and earlier Hublot limited editions. For the Big Bang Unico SR_A, Hublot has created a new black structured rubber strap that translates this motif into an ergonomic yet architectural surface.

The strap is paired with a black ceramic and black-plated titanium deployant buckle clasp and uses Hublot’s “One-Click” system for quick interchangeability. This mix of industrial detailing and practicality mirrors Ross’s description of the watch as functional, robust and hard wearing.

HUB1280 Unico: an exposed powerhouse

Inside, the HUB1280 Unico calibre brings together several Hublot innovations. The self-winding flyback chronograph incorporates a silicon escapement, runs at 4 Hz (28,800 A/h) and offers an approximate 72-hour power reserve, with the front-facing column wheel reinforcing the engineered aesthetic.

The movement’s oscillating weight is crafted in black-plated, circular satin-finished tungsten and is visible through the caseback. With 354 components, 43 jewels and quoted accuracy of -2/+4 seconds per day, the HUB1280 serves as both technical statement and visual anchor.

Positioned at the intersection of design and culture

For Hublot CEO Julien Tornare, the Big Bang Unico SR_A sits at the crossroads of watchmaking, industrial design and contemporary culture, tying the collaboration to the broader Big Bang universe and the legacy of the All Black concept. By moving from tourbillon-centric pieces to a Unico chronograph and expanding the series to 200 pieces, the SR_A partnership becomes more accessible while retaining its avant-garde character.

Why it matters

The Big Bang Unico SR_A crystallises the dialogue between Hublot and Samuel Ross into a more wearable form, without compromising the industrial purity that defines SR_A. By pairing all-black ceramic with the HUB1280 Unico and a purpose-developed honeycomb strap, it shows how contemporary design codes can be integrated into high-end chronograph watchmaking while remaining faithful to both partners’ identities.

The Big Bang Unico SR_A is offered in a 200-piece limited edition through selected Hublot points of sale and online at hublot.com. For updates on Hublot’s key releases and regional availability across the GCC, readers can connect with the editorial team and subscribe to the newsletter.