An ultra-rare Patek Philippe wristwatch formerly owned by the master luxury watch maker who created it will be offered for sale during Antiquorum's Geneva auction on November 11. The coveted piece with reference number 1463 with an asthmometer dial, thought to be the only example of its kind finished in steel, was completed by Jacques Golay circa 1950. During this time, he was working as a régleur in the atelier of Fils de Victorin-Piguet, part of the Patek Philippe group of companies. The timepiece carries a conservative pre-sale estimate of up to $160,000, but may well fetch much more due to its rarity and provenance.