In the Richard Lange Tourbillon “Pour le Mérite” Handwerkskunst, a 15-watch limited edition, elaborate horological complications are enriched with lavish dial and movement decorations. The case of the Richard Lange Tourbillon “Pour le Mérite” Handwerkskunst is crafted from 18-carat honey-coloured gold with a Vickers hardness of more than 300 HV 1. It is about twice as hard as yellow gold and thus significantly more resistant to the tribulations of time. The precious metal is used exclusively for Lange’s most eminent flagship models.
The regulator dial in honey-coloured gold features a pivoting dial segment and is painstakingly decorated with tremblage. The name designates an ancient engraving technique in which a lining burin is guided over the material with an orbital motion in eight different directions. The result is a delicate granular texture that resembles a vivid satin finish.
The Richard Lange Tourbillon “Pour le Mérite” Handwerkskunst is endowed with a fusée-and-chain transmission as well as a tourbillon with a patented stop-seconds device. The chain alone consists of 636 parts; it connects the fusée with the mainspring barrel.
The remarkable movement decorations of this Handwerkskunst edition can be admired with a glance through the sapphire-crystal caseback. A spiralling solarisation pattern is applied to the three-quarter plate made of untreated German silver.
The fourth-wheel bridge and the tourbillon bridge are adorned with an intricate relief engraving. This technique sculpts the motif out of the solid metal, making it appear to protrude from the background.
For further information, visit A. Lange & Söhne www.alange-soehne.com