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Spirit of Big Bang Yellow Sapphire 42MM

Hublot, a little closer to the sun

The Watch Quote™ - February 3rd, 2019

Since 2016, Hublot has been a pioneer in shaping and colouring sapphire. After transparent, smoked black, blue and red sapphires, Hublot continues its colorimetric quest. And as the sky has never been its limit, the watchmaker is once again marking a world first by bringing the colour of the sun into its watches. The Spirit of Big Bang Yellow Sapphire is energising, luminous and brilliant.

Sapphire no longer holds any secrets for Hublot

In 2016, driven by its innovative spirit, Hublot began to popularise and revolutionise sapphire; a totally transparent and ultra-resistant material that is ultra-complex to machine. In 2017, the watchmaker pushed the limits even further: the master of the Art of Fusion accomplished the feat of creating large coloured sapphires, despite the complexity, unpredictability, instability and lack of homogeneity in the fusion and crystallisation of sapphire. This innovation and mastery are backed both by significant investments, which have facilitated the industrialisation of sapphire, and by the work of the internal R&D team, which is continuously exploring how to create new colours of sapphire.

Pushing back the boundaries of engineering and chemistry, Hublot is today creating large, perfectly uniform, transparent and coloured sapphires. A material that dresses the Big Bang Unico, the Spirit of Big Bang and even the MP-05 LaFerrari in transparency. Watches whose external parts have become invisible, revealing all of their architecture and movement.

Here comes the sun

After transparent, smoked black, red and blue, Hublot is inviting a new primary colour into its colour chart: yellow. To give the sapphire its solar hue, Hublot fused copper (Cu) with aluminium oxide (Al2O3). This coloured sapphire conserves all of its initial properties as the most scratch-resistant and transparent material; one of the hardest that exists. A colour that is once again innovative, since it is the first time in the history of watchmaking that sapphire has been coloured yellow.

Innovation knows no limits at Hublot

A watch that is as hard and scratch-resistant as diamond (9 on the Mohs scale, versus 10 for diamond) and as light as titanium, 107 grams on the wrist. Absolute transparency dressed by the sparkle of a solar yellow that extends all the way to its natural rubber bracelet lined with the colour yellow.

Released in only 100 pieces, the Spirit of Big Bang Yellow Sapphire houses a self-winding skeleton chronograph movement, entirely “Hublotised” in its architecture and its finishing, from the legendary Zenith El Primero calibre.

Whether it represents a colour of joy, celebration, power, wealth or wisdom for you, the Spirit of Big Bang Yellow Sapphire will shine on your wrist.

Hublot Spirit of Big Bang Yellow Sapphire 42MM

Technical description

Reference :641.JY.0190.RT
Limited edition :100 pieces
Case :Polished yellow sapphire
Bezel :Polished yellow sapphire with 6 H-shaped titanium screws
Diameter :42 mm
Thickness :15.20 mm
Water resistance :5 ATM (50 m)
Crystal :Sapphire with anti-reflective treatment
Case back :Polished yellow sapphire and sapphire crystal
Crown and pushers :Black-plated titanium
Dial :Sapphire crystal
Movement :HUB4700 calibre
Self-winding skeleton chronograph movement
Date :Calendar display at 4.30
Number of components:278
Jewels :31
Frequency :5 Hz (36'000 A/h)
Power reserve :50 hours
Bracelet :Transparent yellow lined strap
Buckle :Black-plated titanium deployant buckle clasp

From Daytona
to the Cosmograph Daytona

a lot
very much indeed
not at all

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