A hunter-case pocket watch from 1889. This L&S include a minute repeater, a perpetual calendar, and split-second chronograph. A very very high level of complication for a 122 year watch.
Final bid @ Christie's on november 14 of 2011: 339000 chf without taxes.
All history and full description on the Christie's website: http://www.christies.com/lotfinder/a-lange-sohne-a-highly-important/5493328/lot/lot_details.aspx?from=salesummary&intObjectID=5493328&sid=aea618c7-91de-4444-af58-a4c19545db78
