1815 Up/Down
9 references catalogued.
The 1815 with a power reserve indicator, which on a hand-wound watch is a functional addition rather than a decorative one: it tells you when to wind, and Lange's version shows the last portion of the reserve rather than the whole run, because that is the part you need to act on. Auf and Ab — up and down — is the German the collection is named for.
References
Browse the 1815 Up/Down collection.
Oldest to newest
01221.02118-carat yellow goldRecord pending02221.025950 platinumRecord pending03221.02718-carat white goldRecord pending04221.03218-carat pink goldRecord pending05234.02118-carat yellow goldRecord pending06234.02618-carat white goldRecord pending07234.03218-carat pink goldRecord pending08234.04118-carat white goldRecord pending09234.04218-carat pink goldRecord pending
References without production years are catalogued but do not yet carry a verified production record. Those fields are added as they are confirmed rather than estimated.