The 1815 Chronograph 414.028 gave A. Lange & Söhne's classical chronograph a White Gold case and a Black dial when it was introduced in 2017, a pairing that until then had been associated with the Datograph. The 1815 Chronograph first appeared in 2004 as a more restrained companion to the Datograph, built on the same principles but without the outsize date, and it has since become one of the purest expressions of the Lange chronograph. Two features define it and have appeared in every Lange chronograph since 1999: a minute counter that jumps exactly as each minute is completed, and a flyback function that allows a running measurement to be reset and restarted with a single press. The 414.028 also brought back the pulsometer scale that had been part of the original 2004 dial, allowing the wearer to measure a heart rate by timing thirty beats. Its Black dial, white numerals and White Gold hands give the classical 1815 layout a sharper, more technical appearance, while the 39.5 mm case keeps the watch slim and wearable. Of the two versions in the current collection, it is the darker and more graphic, and the one that most clearly shows the chronograph's pocket-watch roots in a contemporary light.
The White Gold case measures 39.5 mm in diameter and 11 mm in height, notably slim for a mechanical chronograph with a column wheel and flyback mechanism. The notched lugs are polished and bevelled with a gentle downward curve, and the pushers at 2 and 4 o'clock are shaped to sit neatly against the case band. The dial is made of solid silver finished in black, with printed white Arabic numerals and a railway-track minute scale subdivided into fifths of a second, so stopped times can be read in fine increments. Around the outer edge runs the pulsometer scale, graduated for thirty beats. Two subdials sit slightly below the horizontal centre line, following the arrangement of Lange's historic pocket chronographs: the running seconds on the left and the jumping 30-minute counter on the right. All the hands are made of rhodium-plated White Gold, including the long central chronograph seconds hand that reaches the edge of the dial and ends in a lozenge-shaped counterweight. The absence of colour gives the dial a graphic, almost monochrome clarity that suits the cool metal of the case. The watch is fastened with a White Gold prong buckle on a black alligator strap, keeping the whole composition in black, white and grey tones.
The hand-wound chronograph movement contains 306 parts and runs for 60 hours when fully wound. It is controlled by a column wheel and uses a horizontal clutch, the classical arrangement for a high-grade chronograph, and its architecture is fully visible through the sapphire caseback. The pusher at 2 o'clock starts and stops the chronograph; the pusher at 4 o'clock resets it, and when pressed during a running measurement it performs the flyback function, returning the hands to zero and starting a fresh measurement the moment it is released. The 30-minute counter does not creep forward like most minute counters; it jumps by one full minute exactly as the chronograph seconds hand passes 60, so elapsed minutes can never be misread. The balance is fitted with a balance spring made by Lange itself, and a stop-seconds function halts the running seconds when the crown is pulled so the watch can be set to the second. The movement's German silver plates and bridges carry Glashütte ribbing, the balance cock is engraved by hand, several jewels sit in screwed gold chatons, and the chronograph levers are finished with polished edges and flat surfaces that reward a long look through the sapphire.
Lange's chronograph history began in 1999 with the Datograph, which introduced the jumping minute counter and flyback function to the reborn manufacture and combined them with the outsize date. Five years later, in 2004, the 1815 Chronograph offered the same principles in a simpler, more classical form, with a pulsometer scale and a dial derived from nineteenth-century pocket chronographs. In 2010 Lange redesigned the model with a movement offering 60 hours of running time and a balance spring made in-house, and removed the pulsometer from the dial. The scale returned in 2015 on a Boutique Edition with a white dial and blue printing, and in 2017 the 414.028 combined it with a Black dial and a White Gold case. Other variations have followed, including a version with a salmon-coloured dial, but the black-dialled White Gold model remains one of the most distinctive in the chronograph's history. Within the Lange chronograph family, which also includes the Double Split, the Datograph Up/Down, the Triple Split and the Odysseus Chronograph, the 1815 Chronograph occupies the place of the classical, understated choice.
The 414.028 appeals to collectors who want a Lange chronograph that is discreet enough to wear every day. At 39.5 by 11 mm, it slips under a shirt cuff more easily than the Datograph, and its White Gold case and Black dial give it a quiet, modern elegance that suits both formal and casual clothing. It offers the same core technology that made Lange's chronographs famous, the jumping minute counter and the flyback function, in a more classical and restrained package. Collectors who value readability will appreciate the high contrast of white on black, while those with an interest in history will recognise the pulsometer and the offset subdials as direct references to Lange's pocket chronographs. It is also a natural next step for owners of a time-only 1815 who want a complication within the same family, and a complement to a Datograph for those who want a second chronograph with a different character. Worn on its black alligator strap, it combines technical substance with visual restraint in a way that few chronographs manage.