Phillips has lined up the star lot to end them all for its fourth watch auction in Geneva in November.
Phillips has set an estimate of US $3m+ on the stainless steel Patek Philippe ref.1518 it will put under the hammer at its Geneva saleroom at the beginning of November.
The watch is one of four known to exist and has never been offered at auction before.
Phillips has previous form in achieving record sums for stainless steel Pateks. In 2015 it achieved nearly $5m for a stainless steel single-button chronograph, reference 130, $3.3m for a stainless steel split seconds chronograph, reference 1436 and $1.2m for a stainless steel chronograph, ref. 1463.
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