The Meisterstück Solitaire Mountain Massiv Skeleton 2006 was the top piece of the first wave of products Montblanc presented on 11 January 2006 to mark the company's centenary. The edition ran to just three examples, all of them already spoken for at the launch; the value of each was given at the time as 140,000 euros.
On a transparent blue barrel in the shape of the 149, the silhouette of the Mont Blanc massif is picked out in 1,400 diamonds, 1,277 of them white and 123 blue, set in 18 carat white gold. Through the translucent barrel the hand-made piston mechanism in solid white gold can be seen. In place of the usual white star, the cap top carries a specially designed star-shaped diamond cut with 43 facets and set in acrylic. The nib is 18 carat gold, rhodium- or platinum-plated, and carries the engraving typical of the anniversary nibs, with a mountain motif and the year 2006.