Brand comparisons usually run on opinion. This one runs on settled transactions: 1,599 recorded sales of Cartier and 201 of Blancpain, all in US dollars so the figures are directly comparable.
What each one actually costs
The median Cartier result is $6,875. The median Blancpain result is $7,810. On typical examples, Blancpain carries roughly 1.1 times the price of Cartier at auction.
Half of all Cartier sales land between $3,250 and $15,360. For Blancpain the middle half runs $4,375 to $16,250.
Which one surprises the specialists
51% of Cartier lots beat their high estimate, against 44% for Blancpain. The two are closely matched, which suggests both are priced with similar confidence.
Breadth of the record
Our archive covers 436 distinct Cartier references and 75 for Blancpain, with results going back to 2001 and 2004 respectively. The top recorded result is $1,654,276 for Cartier and $109,000 for Blancpain.
What this does not tell you
A median is not a verdict. These brands overlap heavily at the edges, and a well chosen example of the cheaper one will outrun a poor example of the dearer one. Condition, completeness and model matter more than the badge on the dial.
