The yellow gold calibre 89 is listed lot 364 for the next Geneva sale of Antiquorum mid november. This watch was first sold by Habsburg, Feldman (that later became Antiquorum) in 1989, at the well known Patek Philippe's 150th anniversary auction. Anybody ...
I know talking about value is not appreciated but this watch is so rare and expensive that a guess is maybe allowed My guess : 6.3 million USD or 4.2 million EUR