... like the anchor tourbillon. However, it is a conventional flying tourbillon with all attributes of this special escapement, like first rate finish and meticulous assembly. We should keep in mind that mode3rn production technologies drastically reduced the main cost point of small tourbillons: the difficult task to make a tourbillon cage with as small a mass as possible and without any unbalance that would have nullified its positive effects. When made traditionally from hand, this demanded a lot of experience and knowledgte, and - most of all - time and patience. Today, it is the CNC's job to do this all, only the finish is applied from hand. Even there, diamond-polishing machines can do that very good and at extremely small tolerances.
So it is rather the assembly of the delicate parts making the price, but already the Progress tourbillons released some 15 years ago showed that it is possible to produce quality tourbillon watches at a hitherto unbelievably low price.
Ulysse Nardin clearly wanted to make use of modern tourbillon production mehtods to offer a complicated watch at a very competitive price, maybe attracting new customers, or introducing the classic sports watch cusotmer of Marine Chronometer and Marine Diver into the fascination of highly complicated timepieces. Paired with the beautiful enamel dial and the classic Marine Chronometer design I think UN made one of the most attractive tourbillon watches in the market.
The other tourbillons offeredd by Ulysse Nardin have all different technologies and also golden cases.