What is the new Hublot Big Bang Sapphire Sky Blue?
The Big Bang Sapphire Sky Blue showcases Hublot’s mastery of materials with a case crafted from sapphire crystal. It is powered by the brand’s Meca-10 calibre that delivers a power reserve of 10 days.
Also Read: Hublot enhances the Big Bang with exciting new models
What is its dial, case and strap features?

Dial: It features a matte sky blue coloured skeleton dial. The central hour and minute hands, small second hand at 9 o’ clock and applied hour-markers are coated with luminescent material.
Case: The case is crafted from polished sapphire crystal with a “sky-blue transparency.” It measures 44 mm (diameter). Dial side and the polished sapphire crystal caseback feature a sapphire crystal with anti-reflective treatment. Water resistant up to 5 ATM or approximately 50 metres. The watch comes with a sky blue coloured lined structured rubber strap fitted with a deployant buckle clasp made from titanium.
Also Read: Hublot’s amazing world of colours and exceptional craftsmanship
Is it powered by a manual-winding movement?
Yes. The Meca-10 is an innovative design “with an architecture inspired by mechanical construction systems.” It comprises of HUB1201, an in-house skeletonised manual movement that drives the central hours and minutes, small seconds at 9 o’clock and power reserve indicator at 6 o’clock. It measures 34.8 mm (diameter) * 6.8 mm (thickness), comprises 223 parts and 24 jewels, beats at a luxurious frequency of 3 Hz or 21,600 vph, and delivers a minimum power reserve of 240 hours or 10 days delivered by two parallel mainspring barrels.
The movement “features an unconventional rack-and-pinion system with sliding racks moving along a 9 o’clock to 3 o’clock axis, creating a distinctive dual power reserve display that has shaped the identity of the collection.”
Also Read: Hublot’s Big Bang: New takes on the 21st-century horological icon
What do we think?

As we explored in Part 1 of our 4-part Hublot series, the brand excels in material innovations and complications. The Big Bang Sapphire Sky Blue is an extension of this lineage. It is a masterclass in materials, transparency, and exceptional watchmaking. Its overall design and execution appear to have more in common with audacious watches created by renowned artisanal and independent watchmakers.
Also Read: Hublot’s daring world of bold design codes
Additional Details
Name: Big Bang Sapphire Sky Blue
Reference: 424.JX.5120.RX
Price: Swiss Franc (CHF) 70,000
Warranty: 5+5. This includes the 5-year International Warranty and an additional 5-years extension through the Hublotista Program.
Limited edition of 100 pieces.
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