Limited to 25 pieces and offered only through Lange boutiques, the Datograph Handwerkskunst 405.048F was presented in August 2024 as the third and most artisanal of the watches A. Lange & Söhne created to mark twenty-five years of the Datograph. It is the eighth model in the manufacture's Handwerkskunst series, a German term meaning artisanship, which Lange has used since 2011 for editions that showcase decorative techniques rarely seen in contemporary watchmaking. Where the regular Datograph relies on a dial of solid silver, this edition uses a dial of solid gold, black-rhodium-plated and engraved by hand in tremblage, and it pairs it with a Yellow Gold case, a metal the Datograph had worn only once before, on a limited model of its first generation. The dial also returns to the design of the original 1999 Datograph, with applied Roman numerals rather than batons, so the anniversary edition celebrates both the model's mechanical legacy and its first appearance. Every owner receives a watch individually numbered on the gold rim of the caseback, underlining its status as a rare collector's piece rather than a variation of the regular collection.
Its 41 by 13.1 mm case is Yellow Gold, polished on the bezel and back and satin-finished on the band, and it carries the Datograph's rectangular chronograph pushers. The dial is where the Handwerkskunst character becomes most visible. The main surface is solid gold coated in black rhodium, then worked by hand with a lining burin in the tremblage technique, which produces countless tiny indentations and a fine, grainy texture that catches the light with subtle reflections. The two chronograph subdials, recessed slightly below the horizontal axis, are rhodium-plated in a light grey tone and engraved in the same way, creating a soft contrast with the darker main dial. The Lange logo, the tachymeter scale and the minute and seconds graduations are engraved in relief, standing out from the textured surface rather than being printed. Applied Roman numerals in gold, chamfered and straight-grained, mark the hours, and the hour and minute hands are solid Yellow Gold with chamfered edges, while the subsidiary and chronograph hands are gold-plated. The outsize date remains at 12 o'clock. A brown alligator strap with a Yellow Gold deployant buckle completes the watch.
The hand-wound movement of 426 parts powers a flyback chronograph with a jumping minute counter, the combination that has defined the Datograph since its debut, together with the outsize date, and it runs for 60 hours when fully wound. The chronograph is controlled by a column wheel, the flyback function resets and restarts the measurement with one press of the lower pusher, and the minute counter advances in a single jump at the end of each minute. For the Handwerkskunst edition, the movement received decoration that goes well beyond Lange's standard finishing. The bridges and three-quarter plate of German silver are given a frosted, granular finish inspired by historic pocket watches, which complements the tremblage dial, and the balance cock is engraved in relief. Most striking of all, the chronograph levers are finished with black polishing, a time-consuming technique that makes a steel surface appear jet black from one angle and mirror-bright from another. Seen through the sapphire caseback, the result is a familiar Datograph architecture transformed into a showcase of hand craftsmanship, assembled twice like every Lange movement.
The Datograph was introduced in 1999 as the reborn manufacture's first chronograph, and it quickly became one of its most admired watches, prized for the three-dimensional beauty of its movement as much as for its functions. Twenty-five years later, Lange celebrated with three special pieces: a Datograph Up/Down in White Gold with a blue dial, a Datograph Perpetual Tourbillon in Honeygold and this Handwerkskunst edition. The Handwerkskunst series itself began in 2011 and has included the Lange 1 Tourbillon Handwerkskunst, the 1815 Rattrapante Perpetual Calendar Handwerkskunst and the Cabaret Tourbillon Handwerkskunst among its eight models, each distinguished by exceptional engraving and finishing. Placing the Datograph in this series was a natural step, since its movement has long been regarded as a canvas for the most accomplished craftsmanship in Glashütte. With its Roman numerals, Yellow Gold case and hand-engraved gold dial, the 405.048F connects the Datograph's origins in 1999 with the decorative traditions of the manufacture's historic pocket watches, and it stands as one of the most personal expressions of the model ever produced.
The 405.048F appeals to collectors who value craftsmanship at the very highest level and want a Datograph that goes far beyond the regular versions. Its tremblage dial, relief engraving and black-polished levers reward close inspection, and each piece carries the individual character of the engraver's hand. With only 25 pieces, available exclusively through Lange boutiques, it is among the rarest Datographs ever made, and its Yellow Gold case and Roman numerals give it a distinctive, vintage-inspired presence that stands apart from contemporary chronographs. It will interest collectors of Handwerkskunst editions, owners of earlier Datographs seeking the model's ultimate expression, and those who appreciate the interplay between mechanical ingenuity and decorative art. On the wrist, the warm gold, dark textured dial and brown strap give it a rich, classical character. For a collection of significance, it represents both a milestone anniversary and a triumph of artisanal work from Glashütte.
