A. Lange & Sohne debuts its new 1815 UP/DOWN in 2013. Available in your choice of 39mm x 8.7mm pink/yellow/white gold case , this is a simple and elegant watch with power reserve indicator (“UP/DOWN” aka “AUF/AB”) situated lower left and small seconds subsidiary dial on the lower right. Historically speaking, the brand’s iconic UP/DOWN power-reserve indicator was first used in historic pocket watches and marine chronometers dating back to a Lange patent granted in 1879. More looks below.
The sweep hour and minute hands as well as the hands of both subsidiary dials are made of blued steel – a typical design feature of earlier Lange pocket watches, just like the recessed central segment, the Arabic numerals, and the railway-track minute scale.
A top-mounted wheel train on the reverse of the movement and two additional screwed gold chatons refer to the enlarged mainspring barrel that delivers power for three days when fully wound. The manually wound calibre consists of 245 parts
the case is merely 8.7 millimetres high. The compact construction is based on a patent received in 1940 by Otto Lange, a grandson of the manufactory’s founder.