What a Big Bang Unico 421.NX Clears for in Bangkok — June 2026
The Hublot Big Bang Unico 421.NX launched in 2018 as the 42mm Big Bang (down from 44/45mm) with HUB1280 in-house chronograph and flyback function.
Thai Watch Market drawn from our work in Bangkok's pre-owned market Jan–May 2026:
- 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 | ฿362,000–฿388,000 |
| Full-set, overseas warranty | ฿345,000–฿368,000 |
| No box, papers | ฿312,000–฿335,000 |
| Loose | ฿285,000–฿305,000 |
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). Replacement straps from Hublot Bangkok Boutique run ฿18,500–฿32,000.
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
From our transactions:
- 54% business owners — statement piece for client meetings
- 27% Hublot collectors with multiple Big Bangs
- 19% first-Hublot buyers trying the brand
Price Movement 2022–2026
- March 2022 — ฿525,000 (peak)
- December 2023 — ฿485,000
- December 2024 — ฿462,000
- June 2025 — ฿452,000
- June 2026 — ฿445,000
Down 15.2% from peak — more than Speedmaster but less than Royal Oak Offshore.
Get a LINE quote for your Big Bang →
Data sources:
- Thai Watch Market database Jan–May 2026, from our work in Bangkok's pre-owned market- WatchCharts Big Bang Unico
- Hublot Bangkok Boutique documentation 2026