Urban Jurgensen's tourbillon complication line, pairing a small-seconds, date, power-reserve, and moonphase display with a tourbillon regulator in a precious-metal case. The Reference 2340 Tourbillon sits at the top of the brand's catalog as its most complicated standard-production reference.
enthusiastmodernUrban Jurgensen Cal. 9 -- manual-wind with tourbillon, 21,600bph; flying tourbillon at 6 o'clock; movement hand-finished to the same standard as Cal. 11; one of the rarest independent tourbillons produced today42mm2012–present
