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watch

  • Design
  • Technical
  • Tourbillon
  • Skeleton
  • Gem-set

Big Bang Tourbillon Power Reserve 5 Days Sapphire Baguette

Hublot 2018

ref. 405.JX.0120.RT.1904
Women's

Hublot's skeleton Big Bang Tourbillon shows the world it has nothing to hide, with a case, dial, strap and movement that are completely transparent. This is the first time a movement has been made with sapphire bridges, highlighting the contours of the gears through contrast. The case middle, case back, bezel and tourbillon bridge, all in sapphire, reveal a crystal mechanism that appears to float. The 48 baguette-cut diamonds on the gem-set version gave Hublot further opportunity to innovate. Because of its hardness, sapphire is difficult to machine in preparation for gem-setting. Hublot's solution is to make cells in the bezel to the exact size of each diamond. The stones are then inserted from underneath, the bezel flipped over and screwed to the case, thus preserving the watch's absolute transparency.

Function

  • Function
    Hours, Minutes

Complications

  • Display
    Power-reserve indicator
  • Regulating mechanism
    Tourbillon

Movement

  • Movement name
    HUB 6016
  • Energy supply
    Manual-winding
  • N° of components
    175
  • N° of jewels
    25
  • Power reserve
    115 hours
  • Vibrations
    21600
  • Form
    Round
  • Diameter
    mm

Case

  • Form
    Round
  • Material
    Sapphire
  • Height/thickness
    14.25 mm
  • Diameter
    45.00 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Material
    Sapphire

Strap

  • Material
    Rubber
  • Colour
    Transparent
  • Fastening
    Folding clasp

Artistic crafts

  • Type of stones
    Diamants
  • N° of stones
    48 Units
  • Carat weight
    2.80
  • Type of artistic crafts
    Gem-setting