A LANGE 1 in stainless steel changed owners on 13th May 2013 at Christie’s “Important Watches” auction in Geneva at 119,489 Euro (148,500 Swiss francs). A. Lange & Söhne has built a few of these pieces in the mid-1990ies. Case and buckle of this extremely rare timepiece are made of stainless steel, complemented by blued-steel hands. The move-ment and its functions are the same as in the regular LANGE 1 with the manufacture calibre L901.0.
The day before, on 12th May 2013, watch collectors purchased two models of the 1815 MOONPHASE in pink gold, reference 231.031, in an auction at Antiquorum which took place in Geneva as well. The moonphase of this watch has been calculated so accurately that it will deviate from the moon’s actual orbit by only one day after 1,058 years of uninterrupted operation.