Similarly as 1815, the 1815 Up and Down represents the year founder Adolph Lange was born. It also has a design like 1815 but it comes with two sub-dials instead, one is the small seconds and the other the power reserve indication.
This watch has a totally different movement to 1815. It miniaturized the patented movement put in Otto Lange (putting planetary gear system within the plates of a pocket watch) into this watch. The watch is very thin considering addition of the power reserve indicator. Its thickness is very close to the predecessor.
It features the Glashutte polishing and beveling (a linear decoration made from rotating grinding wheels to create slight inclined and parallel running lines) in its caliber.
It has 45 hours of power reserve when fully wound and uses a shock-proof screw balance executing 21,600 semi-oscillations per hour. The edges of its movement are all polished and chamfered.
There is also a patented whiplash precision index adjuster that allows small incremental adjustment of the watch’s beat or timing. This device avoids the need to remove the balance wheel.
1815 Up and Down have case that comes in yellow-gold, pink-gold, and platinum. Its diameter is about 35.9mm and uses a flat sapphire crystal including the transparent caseback revealing the movement within. The main dial is white and the small seconds sub-dial at 6 is solid silver.
There are printed Arabic numerals as well as railway minute track around the dial. Platinum and yellow-gold cases use blue steel argente hands for central hands but pink-gold case uses pink-gold argente hands. All the different cases have similar sub-dials that use the blue steel hands.
The straps are hand-stitched crocodile leather that gives it a very strong finishing. The buckle uses the same metal scheme as the case.
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