Reference
Hublot Big Bang Unico Chronograph Rainbow 42mm
Reference 1432XXX · 18k Rose Gold
Track Hublot 1432XXX
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About this reference
The Hublot Big Bang Unico Chronograph Rainbow 42mm (Reference 441.OX.9910.LR.0999) entered production around 2019 and remains a centerpiece of the brand’s contemporary catalog. Collectors target this reference for its complex gem-setting, featuring 166 colored gemstones on the 18k King Gold case and 108 gemstones on the bezel, including rubies, pink sapphires, amethysts, and blue topazes. It utilizes the in-house HUB1280 Unico manufacture movement, a self-winding flyback chronograph with a 72-hour power reserve and a visible column wheel on the dial side. The 42mm diameter offers a more wearable profile than the original 45mm version. On the secondary market, this model typically trades between $65,000 and $85,000 depending on condition and completeness. A notable production detail is the "King Gold" alloy, which uses platinum to ensure the red hue remains stable over years of exposure to the elements.
Auction track record
1 documented sale since 2023. Top hammer $60,480 at Christie's Dubai in 2023. Median hammer: $60,480.
Ranks #9 of 30 Hublot auction lots we track — see all Hublot records.
All documented hammer prices
For this reference (and close variants).
| Lot | Year | Hammer | Venue |
|---|---|---|---|
| 1432XXX · Big Bang Unico Chronograph Rainbow 42mm | 2023 | $60,480 | Christie's Dubai |
About this reference
Hublot's Big Bang Unico Chronograph Rainbow 42mm (1432XXX) is a 18k rose gold reference in the Hublot lineup. Browse all Hublot inventory or set a price alert to be notified when a new example lists.