Baselworld 2013: Buben & Zorweg, One Perpetual Calendar Deluxe

Ten years after its creation in 1995, this German family company, known for its conception and production of very up-market watchwinder cabinets, turns up in complicated watchmaking. An initiative which, right from the start, relies on a selective distribution in a hundred or so countries and in the windows of the most visited retailers by the planet of collectors. In 2007, then in 2009, its Double Tourbillon and its Orbit tourbillon were acclaimed by the experts.

Barely one year old, its model “One”, a concentrate of classic lines and streamlined design, is declined in a Perpetual Calendar version in 2013. This major watchmaking complication is provided by the manual-winding BZ01 calibre, which is the home-made development of a base movement designed and produced by Martin Braun in Alpnach (MHO AG): power reserve of 156 hours, 18’000 alternations per hour, 312 components including a pallet and a silicon escapement, a glucydur balance-spring, a power reserve indicator.

The case measures 46 mm in diameter. Its bezel is decorated with 62 diamonds. Each piece is delivered with its “Time Mover” winding-mechanism system.