Named in tribute to Ferdinand Adolph Lange's birth year, the 1815 collection stands as an expression of traditional German watchmaking. This reference 401.031, produced in 2007, houses the piece in a 39mm round rose gold case and pairs it with a brown alligator strap secured by a tang buckle.
The black dial is rendered with rose gold Arabic numeral hour markers, delivering a high-contrast, legible layout. A flyback chronograph complication allows the timing function to be instantly reset and restarted, complementing the hours, minutes, and running seconds on display. Water resistance is rated to 30 metres.
An exhibition caseback opens a view onto the manually wound L951.0 movement, finished with Glashütte ribbing and a hand-engraved balance cock — hallmarks of the brand's approach to mechanical craft rooted in Germany. Box and papers details are not specified.
