What a Big Bang Unico 421.NX Sells for in Bangkok — June 2026
The Hublot Big Bang Unico 421.NX is the 44mm Big Bang, powered by the Unico 2 HUB1280 in-house flyback chronograph with a 72-hour power reserve and 100m water resistance.
Estimated price bands as of June 2026, built from public market data (WatchCharts market values, auction results and dealer listings) converted to THB:
- Low ฿380,000 — 2018–2020 references, worn, no box
- Median ฿445,000 — Full-set 2022–2023 with TH warranty
- High ฿520,000 — NOS 2024 with stickers
Big Bang Unico — Hublot's Own Market
Hublot doesn't compete with Rolex or AP directly; it built its own "fusion materials + bold design" niche. Big Bang Unico owns this segment:
- Material fusion — titanium + rubber + ceramic + carbon in one case
- HUB1280 in-house chronograph — column wheel + flyback + 72h reserve
- Skeleton dial — caliber visible through the dial
The Bangkok collector base is specific: business owners aged 35–55 seeking a watch that announces itself.
421 Material Variants
| Reference | Material | Median Bangkok 2026 |
|---|---|---|
| 421.NX.1170.RX | Titanium | ฿445,000 |
| 421.CI.1170.RX | Ceramic black | ฿485,000 |
| 421.NX.1170.NX | Titanium + black ceramic bezel | ฿465,000 |
| 421.OX.1180.RX | King Gold (Hublot rose gold) | ฿1,250,000 |
| 421.JX.1170.RT | Sapphire crystal case | ฿1,850,000 |
Titanium is the entry. King Gold and Sapphire are collector tiers with very low Thai market supply.
What Bangkok Dealers Pay
| Scenario | Seller payout (titanium 2023 full set) |
|---|---|
| Full-set, TH warranty | ฿347,000–฿365,000 |
| Full-set, overseas warranty | ฿328,000–฿346,000 |
| No box, papers | ฿299,000–฿318,000 |
| Loose | ฿270,000–฿281,000 |
Dealers pay 78–82% — Hublot depreciation runs higher than Rolex or AP because the collector base is narrower.
"One Click" Strap System
Big Bang uses Hublot's One Click strap-change system — change in 10 seconds, faster than Cartier QuickSwitch.
Owners commonly carry multiple straps (rubber, leather, alligator). We haven't verified current prices for genuine Hublot replacement straps in Thailand; ask the boutique for a quote before budgeting.
421.NX.1170.RX Authenticity Checkpoints
- HUB1280 visible through skeleton dial and sapphire caseback — column wheel and Hublot-specific finishing
- Carbon fibre dial elements — true 3D texture; fakes use printed lookalikes
- H-shaped screws — six H-screws on the bezel; each must be symmetrical
- Rubber strap — authentic Hublot rubber has the logo embossed on the inner side and vulcanised texture
- Crown logo "H" — polished proprietary H on the crown
Big Bang Unico Bangkok Buyer Profile
Big Bang Unico buyers in Bangkok tend to fall into a few groups:
- Business owners — statement piece for client meetings
- Hublot collectors with multiple Big Bangs
- First-Hublot buyers trying the brand
Price Movement 2022–2026
The period-by-period medians this page used to list had no source behind them, so they have been removed. The current estimate and how it is built are in the price box above.
Get a LINE quote for your Big Bang →
Data sources:
- WatchCharts Big Bang Unico
- Hublot Bangkok Boutique documentation 2026