Urban Jürgensen & Sønner Copenhagen/Derek Pratt, An Important Massive and Rare Yellow Gold Open-Faced Twin Barrel One Minute Tourbillon Watch with Carriage Mounted Remontoire Jump Seconds and Power Reserve Indication, No 3060, circa 1982. Estimate CHF60,000–100,000/$62,000–103,000.
The auction on 12 November will include a collection of 8 watches by Urban Jürgensen, whose horological genius built on the impressive legacy of his watchmaking father, Jürgen Jürgensen. The dynasty’s rich history was later further enriched in the 20th century by the collaboration between talented Swiss watchmaker Peter Baumgartner and Derek Pratt, one of the most brilliant watchmakers of the 20th and 21st centuries.
Together, they developed a new tourbillon with one-second remontoire and twin mainspring barrels, taking the tradition to a new level.
The leading watch in this collection
– which features this rarest and most sophisticated version of Derek Pratt’s invention – is an outstanding example of the collaboration which marked a masterful chapter in the company’s illustrious history.