Hublot has unveiled the Big Bang Sapphire Sky Blue, a new limited-edition timepiece that combines the brand’s expertise in sapphire with the distinctive architecture of its Meca-10 movement. Limited to just 100 pieces, the watch is designed to evoke the openness and clarity of a summer sky through its transparent blue construction.
Housed in a 44mm fully polished sapphire crystal case, the Big Bang Sapphire Sky Blue continues Hublot’s long-running exploration of coloured sapphire, a material that has become one of the manufacture’s defining signatures over the past decade.
A New Expression of Sapphire
Hublot first began pushing the limits of sapphire watchmaking in 2016, gradually expanding from clear sapphire into increasingly complex coloured executions.
The Big Bang Sapphire Sky Blue takes that expertise in a softer direction, using a pale, transparent blue that gives the watch a bright and airy character while allowing the mechanics beneath to remain fully visible.
The sapphire bezel is secured by Hublot’s signature H-shaped titanium screws, while a matching sapphire caseback continues the transparent aesthetic from front to back.
A structured sky-blue rubber strap completes the monochromatic look, creating a cohesive design that feels both technical and playful.
The Meca-10 Takes Centre Stage
At the heart of the watch is Hublot’s HUB1201 manufacture manual-winding movement, better known as the Meca-10.
First introduced in 2016, the movement was conceived around an open, construction-inspired architecture that puts its mechanics on display rather than hiding them beneath a traditional dial.
The calibre is made up of 223 components and features a fully skeletonised structure inspired by Meccano construction systems. Two parallel mainspring barrels deliver an impressive 10-day power reserve, making the movement as practical as it is visually distinctive.
One of its defining features is an unconventional rack-and-pinion power reserve system, with sliding racks moving along a horizontal axis from 9 o’clock to 3 o’clock. This creates a highly visual indication of the remaining power reserve and gives the movement much of its mechanical personality.
Mechanics on Full Display
The Big Bang Sapphire Sky Blue is designed to showcase that movement from every angle.
A matte sky-blue skeleton dial and matching movement bridges echo the case colour while preserving the transparency that defines the watch. Rather than competing with the mechanics beneath, the monochromatic treatment brings the entire design together and moves feel like an integral part of the exterior.
The result is a watch that feels more architectural than ornamental, using transparency, structure and colour to create visual depth.
A Statement of Hublot’s Material Expertise
The watch also serves as another demonstration of Hublot’s continuing focus on material innovation.
Since first introducing sapphire into the Big Bang collection, the brand has steadily expanded the range of colours and techniques available, turning what was once an exotic and difficult material into a recurring part of its design language.
The Big Bang Sapphire Sky Blue carries that philosophy forward by pairing an advanced material with one of Hublot’s most recognisable in-house movements.
The watch is also covered by Hublot’s 5+5 warranty programme, extending international coverage for up to 10 years.
The Hublot Big Bang Sapphire Sky Blue is limited to 100 pieces and is available through selected Hublot points of sale and online via the brand’s official website.
