Ulysse Nardin Anchor Tourbillon is among several novelties that were introduced at the Baselworld 2015. This newcomer features the constant Ulysse Anchor escapement which is completely made of silicon and designed by the principles of flexible mechanisms, thus exploiting the elasticity of flat springs.
The Ulysse Anchor escapement is the result of 8 years of research and development. The prototype version was presented last year and after further developments, this year we have a new design for the constant force escapement which entirely changes the classic watchmaking approach. As it is reported from the manufacturer, the Anchor Escapement is created in collaboration with Sigatec, a company that is specialized in the production of silicon micro-components.
The Ulysse Anchor escapement combines several technical innovations. Firstly, its pallet fork is no longer constrained by a pivoting staff, so now it moves entirely without any friction. Secondly, the geometrical improvements which were made to the pallet fork, the escape wheel and the flat springs have resulted in a constant-force escapement. Finally, this special invention is brought aboard in a 60-seconds tourbillon cage. Although the cage comprises 35 individual parts, it weighs no more than 0.4 grams.
This amazing oscillating mechanism represents a big step forward in the field of chronometric precision with its constant amplitude, irrespective of how much the two series-mounted spring barrels are wound. The exceptional mechanism is visible via a large opening located at the 6 o’clock position and it is encircled by the indication of its power reserve of approximately seven days on 140° arc.
The beating heart of the Ulysse Nardin Anchor Tourbillon is the new caliber UN-178 manually wound movement that oscillates at the frequency of 18,000 alternations per hour. The in-house manufactured movement is built on 29 jewels.
Ulysse Nardin Anchor Tourbillon is housed in either 18-karat rose gold or 18-karat white gold case (their referent numbers are 1786-133 and 1780-133). Both models measure 44mm in diameters and they are available in the limited editions of 18 specimens each.
The watch case is shielded with antireflective sapphire crystals on both sides and it is constructed to resist water pressure of up to 30 meters (about 100 feet). Underneath the front glass lies an elegant white Grand Feu enamel dial created by the unrivaled expertise of Donzé Cadrans, a dial-making specialist company which is owned by Ulysse Nardin.
The Ulysse Anchor Tourbillon is teamed up with either black or brown leather strap fitted with a simple buckle. The watch will be available this May for the retail price of $89,400 for the rose gold model and $93,600 for the white gold version.