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Ballon Bleu · 2019 to present

Cartier Ballon Bleu 40mm WSBB0039

48SCORE / 100
D
Grade D: passion purchaseToday's call · Buy it to wear, not to flip
Short termunder 1 yearFairMid term1 to 3 yearsWeakLong term3+ yearsWeak

Rank #37 of 41 rated pieces in the Cartier Vault

Retail (2026)$8,200
Typical sale today$5,200Typical range $4,600 to $5,600
Vs retail-38%
1-yearn/a

Market range: the middle half of 14 recorded eBay sales in the last 12 months.

Open in the interactive VaultLive eBay listings ↗︎

Market price history

2026 $5,200

Median recorded eBay sale price for each quarter with 3 or more sales. Dashed line marks the 2026 retail price.

Investment scorecard

Momentum50Measured price direction: the median recorded sale of the last 4 months against the median of 8 to 12 months ago. 50 means flat; small samples are pulled toward 50.
Liquidity47How easily it sells: recorded sales in the last 12 months (300 or more scores 100) and eBay's 90-day sell-through rate.
Scarcity27Demand against supply. For modern pieces, how far the market sits above or below current retail, plus a lift if production has ended. For vintage, how rarely one comes up for sale.
Value entry50Where the latest quarter's median sale sits inside its own 3-year range. Buying near the low scores high; buying at the high scores low.
Condition safety81How safe a typical example is: the age of the design, plus how tightly sale prices cluster (a wide spread means condition and originality swing the price).

The story

The 40 mm Ballon Bleu, added in 2019 between the 36 and 42 mm sizes.

It sells far less often than the 42 and 36 on the resale market.

Also sold under reference WSBB0061; every one of them is counted here.

Our verdict: Sells for about 37% under its $8,200 boutique price. 14 recorded eBay sales in the last 12 months, with prices flat over the year.

Configurations

Sizes40mm
Case & braceletStainless steel
Factory braceletSteel bracelet, interchangeable, deployant
Factory bezels
Notable dialssilvered guilloche (WSBB0039) or blue sunray (WSBB0061), Roman numerals
Caliberautomatic, calibre 1847 MC, date
Production2019 to present

Recent recorded sales

SoldExamplePrice
Oct 13, 2026Pre-owned · eBay sale ↗︎$6,680
Sep 29, 2026Pre-owned · eBay sale ↗︎$5,250
Aug 24, 2026Pre-owned · eBay sale ↗︎$4,500
Aug 14, 2026Pre-owned · eBay sale ↗︎$5,200
Jun 21, 2026Pre-owned · eBay sale$3,650
Jun 20, 2026Pre-owned · eBay sale$4,600

Recorded eBay completed sales, logged at our last data refresh.

If you like this one

Ballon Bleu 42mmWSBB0049 · Grade DBallon Bleu 28mmWSBB0073 · Grade FBallon Bleu 36mmWSBB0048 · Grade DBallon Bleu 33mmWSBB0044 · Grade F
See the Ballon Bleu 40mm in the VaultBrowse all references