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  • Design
  • Chronograph
  • Skeleton

Spirit of Big Bang Yellow Sapphire

Hublot 2019

ref. 641.JY.0190.RT
Unisex

Since 2016, Hublot has developed remarkable capacities for shaping and colouring sapphire. After transparent, smoked black, blue and red, yellow is the latest addition to its palette of shades and a world-first, showcased in the Spirit of Big Bang Yellow Sapphire. This sunshine colour comes from the fusion of copper with aluminium oxide into a yellow sapphire that retains the mineral's characteristic properties of transparency, scratch-resistance and hardness (sapphire measures 9 on the Mohs scale; only diamond is harder). This Spirit of Big Bang is therefore exceptionally resistant yet feels as light on the wrist as titanium, weighing just 107 grams. Produced as a 100-piece limited edition, it is powered by a high-frequency, skeletonised automatic chronograph movement, the HUB4700; in fact the Zenith El Primero calibre which has been given the full "Hublot treatment".

Function

  • Function
    Hours, Minutes, Small seconds

Complications

  • Elapsed time measurement
    Double pusher chronograph
  • Calendars
    Simple calendar

Movement

  • Movement name
    HUB4700
  • Energy supply
    Self-winding
  • N° of components
    278
  • N° of jewels
    31
  • Power reserve
    50 hours
  • Vibrations
    36000
  • Form
    Round
  • Diameter
    mm

Case

  • Form
    Cushion
  • Material
    Sapphire
  • Height/thickness
    15.20 mm
  • Maximum clear dimensions
    42.00 mm
  • Back
    Sapphire
  • Water-resistance
    50 m

Strap

  • Material
    Rubber
  • Colour
    Yellow
  • Fastening
    Folding clasp

Characteristics

  • Limited/numbered edition
    100