Hublot Big Bang 411.JX.4803.RT.4099

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          Description

          【Case Construction】
          • Reference-based specification: 45 mm Big Bang Unico Sapphire Rainbow case, based on Reference 411.JX.4803.RT.4099; this limited model is described with polished sapphire case, white-gold rainbow gemstone bezel, HUB1242 Unico flyback chronograph movement, and transparent rubber strap.
          • The transparent sapphire case gives the watch a futuristic and highly collectible appearance.
          • The rainbow baguette-set bezel adds strong high-jewelry impact.
          • Titanium screws, pushers, and crown details reinforce the technical Big Bang identity.

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          【Dial Highlights】
          • The transparent skeleton dial exposes the Unico chronograph movement.
          • Rainbow bezel gemstones create a vivid frame around the open dial.
          • White luminous markers and hands maintain readability.
          • The overall design combines transparency, color, and mechanical complexity.

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          【Crystal】
          • Sapphire-style crystal and sapphire case construction create a fully transparent visual effect.
          • The crystal highlights both movement depth and gemstone brilliance.
          • Its clear structure gives the watch a rare architectural presence.

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          【Movement】
          • Powered by HUB1242 Unico self-winding flyback chronograph movement.
          • Functions include chronograph timing, date, hours, minutes, and seconds.
          • The flyback chronograph architecture strengthens the watch’s technical credibility.

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          【Strap & Clasp】
          • Transparent structured rubber strap continues the sapphire-case concept.
          • The strap keeps the colorful bezel as the visual focus.
          • Titanium deployant clasp provides secure and lightweight wear.