What a Ballon Bleu WSBB0039 Sells for in Bangkok — October 2026
Cartier Ballon Bleu launched in 2007 — a rounded case with the signature integrated crown beneath a domed sapphire guard. WSBB0039 is the 40mm steel version using caliber 1847 MC, the Cartier in-house automatic.
Estimated price bands as of October 2026. They are the median of four index and sold figures for the WSBB0039: WatchCharts market price US$4,363 (March 2026), Loupe market price US$4,431, Loupe 60-day sold average US$5,092 and Loupe fair market value US$5,217 (all October 2026), cross-checked against Chrono24 and US dealer asking prices and converted at ฿32.5/USD. They are US and international market figures, not Bangkok transaction records:
- Low ฿125,000 — 2019–2020 references, worn, no box
- Median ฿155,000 — Full-set 2022–2023 with TH warranty
- High ฿175,000 — NOS 2024 with stickers
Ballon Bleu Silhouette — What the Thai Market Values
The Ballon Bleu has a "rounded but not perfectly circular" case shape with the crown integrated inside the case profile, protected by a domed sapphire guard. Cartier patented the design in 2007.
What Bangkok collectors weigh:
- Integrated crown — crown sits inside the case, creating a silhouette no other reference replicates
- Spinel cabochon on the crown — Cartier sets the fluted crown with a blue synthetic spinel cabochon
- Roman numerals — Cartier roman pattern shared across Tank, Santos, Ballon Bleu
Ballon Bleu Size Variants
| Size | Reference | Median Bangkok 2026 |
|---|---|---|
| 40mm steel | WSBB0039 | ฿155,000 |
| 36mm steel | W6920071 (quartz) | ฿138,000 |
| 33mm steel | WSBB0048 | ฿125,000 |
| 42mm rose gold | WGBB0009 | ฿485,000 |
40mm is most traded in Thailand because it works across male and female wearers — Cartier designed Ballon Bleu as a genuinely gender-neutral piece. Only the WSBB0039 row was re-checked in October 2026; treat the other three rows as unverified.
What Bangkok Dealers Pay
| Scenario | Seller payout (40mm 2023 full set) |
|---|---|
| Full-set, TH warranty | ฿124,000–฿130,000 |
| Full-set, overseas warranty | ฿115,000–฿122,000 |
| No box, papers | ฿105,000–฿115,000 |
| Loose | ฿94,000–฿102,000 |
Dealers pay 80–84% — similar to Santos and Tank Louis.
WSBB0039 Authenticity Checkpoints
- Crown integration — crown must sit flush with case profile; fakes commonly protrude
- Spinel cabochon — a blue synthetic spinel set in the fluted crown, Cartier-specific
- Caliber 1847 MC — visible through sapphire caseback, Côtes de Genève finishing
- Roman numerals applique — markers polished 360 degrees
- Glass guard dome — must be sapphire dome; fakes use thinner mineral glass
Caliber 1847 MC
Cartier's in-house automatic introduced in 2010 — uses paramagnetic alloys for anti-magnetic resistance, 42-hour reserve, 28,800 vph. Significant because it predates Cartier's full in-house transition, when Cartier still relied on ETA and Jaeger-LeCoultre within the Richemont group.
Price Movement 2022–2026
The 2022–2026 medians this page used to list had no source behind them, so they have been removed. The dated points we can source, converted at ฿32.5/USD:
- 4 March 2026 — WatchCharts market price US$4,363 (about ฿141,800), against US$6,500 US retail; WatchCharts showed the reference down 4.5% year on year
- 15 October 2026 — Loupe market price US$4,431 (about ฿144,000); Loupe 60-day sold average US$5,092 (about ฿165,500) on three sales in 30 days
- October 2026 — Loupe fair market value US$5,217 (about ฿169,600), down 1.4% over one year
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Data sources: