A Lange Sohne Lange 1815 Flyback Chronograph Rose Gold Black Dial 39mm Leather Strap 401.031 - PRE OWNED

The A. Lange & Söhne 1815 Flyback Chronograph reference 401.031 stands as one of the most intellectually satisfying and visually commanding timepieces to emerge from the storied workshops of Glashütte, Germany. Named in honor of Ferdinand Adolph Lange's birth year of 1815, the 1815 collection has always represented the purest distillation of Lange's philosophy: technical excellence expressed through rigorous, unornamented design. The flyback chronograph complication elevates the line further, adding a layer of mechanical sophistication that distinguishes it immediately from conventional stopwatch-equipped dress watches.

The 39mm rose gold case of reference 401.031 occupies a sweet spot that feels equally at home at the boardroom table and the formal dinner — substantial enough to command attention on the wrist yet refined enough to slip beneath a French-cuffed shirt with ease. Rose gold lends the case a warm, organic luminosity that interacts beautifully with the deep black dial, creating one of the most visually arresting contrasts available in haute horology. Every surface transition, every chamfer on the lugs, reflects the hand-finishing discipline that Lange craftsmen invest in each individual case.

The black dial of the 1815 Flyback Chronograph 401.031 is a study in disciplined restraint. Lange's characteristic outsize date — a hallmark of the brand since the relaunched Lange 1 of 1994 — is absent here in favor of a symmetry that honors the classical pocket-watch aesthetic from which the 1815 line draws its inspiration. Subsidiary registers, a central flyback seconds hand, and elegant applied hour markers in rose gold occupy the dial with quiet authority. The result is a layout that rewards careful study without ever feeling crowded.

The flyback mechanism itself is among the most useful and technically demanding chronograph complications a watchmaker can produce. Unlike a standard chronograph, which requires three sequential actions — stop, reset, restart — a flyback chronograph accomplishes all three in a single depression of the pusher, making it an instrument of genuine practical elegance. Lange's execution of this complication is legendary in collector circles for its finishing standards: hand-engraved balance cocks, three-quarter plates in German silver, and blued screws are hallmarks of the manufacture's movement philosophy, visible through exhibition casebacks on pieces from this family.

Wearing the 1815 Flyback Chronograph 401.031 on its alligator leather strap is an experience that mirrors the watch's character — understated, precise, and richly textured. The strap's scale pattern complements the warmth of the rose gold case while ensuring a secure and comfortable fit across a wide range of wrist sizes. This pre-owned example represents a compelling point of entry into Lange collecting, carrying the patina of a watch that has been appreciated and worn, now offered with Bizak & Co.'s standard of careful inspection and presentation.

At Bizak & Co., we source pre-owned A. Lange & Söhne references with the same rigor we apply to new inventory, ensuring that every watch we offer for sale meets our standards for authenticity and condition. The 1815 Flyback Chronograph in rose gold with black dial — reference 401.031 — is a finite object representing decades of accumulated German horological tradition, and examples in this configuration are increasingly scarce on the secondary market. We invite you to contact our team or buy online through bizakandco.com to secure this remarkable piece before it finds its next custodian.