Brand comparisons usually run on opinion. This one runs on settled transactions: 466 recorded sales of Breitling and 400 of Piaget, all in US dollars so the figures are directly comparable.
What each one actually costs
The median Breitling result is $3,360. The median Piaget result is $5,250. On typical examples, Piaget carries roughly 1.6 times the price of Breitling at auction.
Half of all Breitling sales land between $2,048 and $5,625. For Piaget the middle half runs $3,570 to $10,240.
Which one surprises the specialists
33% of Breitling lots beat their high estimate, against 41% for Piaget. That gap says the trade is more often caught out by Piaget, which is a sign of demand outrunning the published guide.
Breadth of the record
Our archive covers 156 distinct Breitling references and 156 for Piaget, with results going back to 2001 and 2001 respectively. The top recorded result is $82,600 for Breitling and $602,500 for Piaget.
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.