Brand comparisons usually run on opinion. This one runs on settled transactions: 330 recorded sales of Ulysse Nardin and 115 of Gerald Genta, all in US dollars so the figures are directly comparable.
What each one actually costs
The median Ulysse Nardin result is $8,850. The median Gerald Genta result is $4,800. On typical examples, Ulysse Nardin carries roughly 1.8 times the price of Gerald Genta at auction.
Half of all Ulysse Nardin sales land between $3,750 and $18,750. For Gerald Genta the middle half runs $2,750 to $12,101.
Which one surprises the specialists
46% of Ulysse Nardin lots beat their high estimate, against 43% for Gerald Genta. The two are closely matched, which suggests both are priced with similar confidence.
Breadth of the record
Our archive covers 125 distinct Ulysse Nardin references and 75 for Gerald Genta, with results going back to 2003 and 2006 respectively. The top recorded result is $164,500 for Ulysse Nardin and $126,000 for Gerald Genta.
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.