A. Lange & Söhne congratulates its long-standing partner Uhren Huber in Munich on its 150th anniversary with a new, enlarged version of the 1815 that has been endowed with a useful calendar-week function limited to 150 watches.
The manually wound calibre L045.1 movement features two new functions. The third hand from the centre, distinctly different in form and material from the hour and minute hands indicates the current calendar week.
Instead of adding a conventional full calendar to this special edition, available exclusively at Uhren Huber in Munich, Lange has integrated a day-of-week display function on the subsidiary dial at 6 oclock, a location normally reserved for small seconds. In the 1815 KALENDERWOCHE, the seconds hand shares this space with a small day-of-week hand that differs in shape and colour.
50 pieces in each case color of this Lange watch will be available, with cases in platinum, yellow gold and pink gold. An engraving in gold lettering on the three-quarter plate can be seen through the sapphire-crystal caseback: Andreas Huber München 1856 2006.
Both calendar displays can be separately corrected with push pieces at 2 and 4 oclock. In the yellow and pink gold versions, the time-display hands are made of blued steel. In the platinum version, they are rhodiumed gold. The day-of-week and calendar-week hands are in yellow or pink gold to match the case and in blued steel in the platinum model.
With a case diameter of 38.4 millimetres, the 1815 KALENDERWOCHE is positioned between the 1815 AUTOMATIK and the 1815 CHRONOGRAPH. The calibre L045.1 manufacture movement ticks at a frequency of 21,600 semi-oscillations per hour and has a power reserve of 45 hours when fully wound. The movement features a stop-seconds mechanism.