Only a few brands rely on color and material innovations like Hublot. Since the Big Bang in 2005, every fusion imaginable has been explored, from sapphire, ceramics and carbon to precious metals, often paired with interesting hues. Think of the vibrant Big Bang Tourbillon Automatic Green SAXEM, ice-cold sapphire crystal or titanium with cool white ceramic of the Big Bang Unico Winter Editions, the eye-catching Spirit of Big Bang Orange Ceramic or the Big Bang Unico Mint Green and Petrol Ceramic; All of these are just some of the releases in 2025. In fact, color has long become a Hublot trademark. Now the brand is introducing a new color: Coal Blue. The new tone is described as a fusion of grey, black and blue and shows mineral reflections under the light.
The new Coal Blue series includes four references from the Big Bang and Spirit of Big Bang lines: two titanium chronographs, the Big Bang Original Unico 43 mm and the Spirit of Big Bang 42 mm, as well as two diamond-set steel models, the Big Bang One Click 33 mm and the Spirit of Big Bang 32 mm, each dressed in this cool, modern hue.


Big Bang Original Unico Titanium Coal Blue
As the heart of the new series, the Big Bang Original Unico Coal Blue combines the technical design of the Unico with the well-known shape of the Big Bang Original. The 43mm titanium case combines polished and satin-finished surfaces and is further enhanced by the new carbon-effect dial in Coal Blue, an embossed geometric pattern inspired by the texture of carbon fiber. The two-register layout with the larger chronograph minutes subdial also features a date window at 4:30 and a mix of Arabic numerals and baton indices. The indices, hour and minute hands are treated with Super-LumiNova. The in-house flyback chronograph movement Unico HUB1280 with a power reserve of 72 hours is visible through the sapphire crystal caseback. Continuing the tonal harmony, the textured coal blue rubber strap fastens with a titanium folding clasp.


Quick facts: 43 mm diameter – Satin/polished titanium case – AR-coated sapphire crystal front and back – 100 m water resistance – Embossed carbon blue dial – HUB1280 Unico flyback chronograph – 28,800 vibrations per hour – 72-hour power reserve – Charcoal blue textured rubber strap with titanium folding clasp – Ref. no. 431.NX.717B.RX – CHF 16,900 or EUR 20,000
Spirit of Big Bang Titanium Coal Blue
The Spirit of Big Bang Titanium Coal Blue brings the new color to Hublot's signature tonneau case. Measuring 42mm in size (14.1mm thick), the watch features a mix of polished, satin-finished and micro-blasted titanium finishes. The coal blue “carbon effect” dial has a 3-6-9 layout and a date at 4:30 o’clock. The watch is powered by the HUB4700 high-frequency automatic chronograph, which is derived from Zenith's El Primero and beats at 36,000 vibrations per hour and has a power reserve of 50 hours.


Quick facts: 42 mm diameter – Satin/polished titanium case – Front/back in sapphire crystal with AR coating – 100 m water resistance – Dial with embossed carbon blue “carbon effect” – Automatic skeleton chronograph HUB4700 – 36,000 vibrations per hour – 50 hour power reserve – Rubber strap with carbon blue lining and titanium folding clasp – Ref. no. 642.NX.717B.RX – CHF 19,900 or EUR 23,500
Big Bang One Click Steel Coal Blue Diamonds
Compact yet unmistakably Hublot: The Big Bang One Click Coal Blue Diamonds (33 mm) brings the new color into an elegant, jewelry-inspired form. The polished and satin-finished steel case features a bezel set with 36 diamonds (0.76 ct) and a sunburst coal blue dial that emits a silvery shimmer in changing light. The watch is powered by the HUB1120 automatic movement (based on the Sellita SW100) with a 40-hour power reserve and features a date window at 3 o'clock. The look is completed by a coal blue rubber strap, which can be easily replaced thanks to the one-click system.
Quick facts: 33 mm diameter – Satin/polished stainless steel case – Front/back in sapphire crystal with AR coating – 100 m water resistance – Charcoal blue sunburst dial – Bezel set with 36 diamonds (0.76 ct) – HUB1120 automatic transmission – 28,800 vibrations per hour – 40 hour power reserve – Charcoal blue rubber strap with Folding clasp made of steel – Ref. no. 485.SX.717B.RX.1204 – CHF 12,900 or EUR 15,200


Spirit of Big Bang Steel Coal Blue Diamonds
The Spirit of Big Bang Coal Blue Diamonds (32mm) offers the same color palette in a delicate, feminine shape. The stainless steel tonneau case is set with 44 brilliant-cut diamonds (0.70 ct) and frames a coal blue sunray dial. The HUB1120 (Sellita SW100) automatic movement ensures reliable performance, visible through the sapphire caseback. Paired with a carbon blue-lined rubber strap and folding clasp, this model combines luxury and everyday suitability.


Quick facts: 32 mm diameter – Case in satin/polished stainless steel – Front/back in sapphire crystal with AR coating – Water resistant to 100 m – Charcoal blue sunburst dial – Bezel set with 44 diamonds (0.70 ct) – Automatic transmission HUB1120 – 28,800 vibrations per hour – 40 hour power reserve – Rubber strap with coal blue lining and folding clasp made of steel – Ref. No. 682.SX.717B.RX.1204 – CHF 14,900 or EUR 17,600
Further information at hublot.com.
https://monochrome-watches.com/hublot-big-bang-and-spirit-of-big-bang-coal-blue-collection-review-price/