A. Lange & Söhne 1815 234.026

A. Lange & Söhne 1815 UP/DOWN (Ref. 234.026) is a sophisticated 39mm luxury dress watch housed in 18-carat white gold. Its argenté-coloured dial, crafted from solid silver, features crisp black Arabic numerals, a classic railroad-style minute track, and striking blued-steel alpha hands, offering exceptional legibility and contrast. The defining feature is the signature "UP/DOWN" power-reserve indicator at 8 o’clock—labeled "AUF" and "AB"—which shows the 72-hour power reserve of the manual-winding movement, perfectly balanced by a small seconds sub-dial at 4 o'clock. Through the sapphire crystal caseback, the meticulously finished caliber L051.2 movement is visible, featuring a three-quarter plate made of German silver, screwed gold chatons, and a hand-engraved balance cock.