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A. Lange & Söhne’s September slate pairs two studies in precision: a platinum 1815 Tourbillon plus a sultry salmon Richard Lange Jumping Seconds

A. Lange & Söhne’s September slate pairs two studies in precision: a platinum 1815 Tourbillon plus a sultry salmon Richard Lange Jumping Seconds

Jason Lee
  • A. Lange & Söhne unveils the 1815 Tourbillon in 950 platinum with a jet-black grand feu enamel dial and the Richard Lange Jumping Seconds in 750 white gold with a salmon coloured pink gold dial.
  • Both models feature Lange’s Zero-Reset, which snaps the seconds hand back to zero so that the minute hand can be precisely aligned to a marker.
  • The new models are typical of Lange, featuring a three‑quarter plate in untreated German silver, hand‑engraved balance cock, blued screws and screwed gold chatons, all visible through the sapphire caseback.

A. Lange & Söhne’s modern story is one of disruption and continuity. Founded in Glashütte in 1845 by Ferdinand Adolph Lange, the firm was expropriated after World War II and effectively vanished, only to be revived in 1990 by Walter Lange, the founder’s great‑grandson. Since then, production has remained deliberately low—only a few thousand watches per year, predominantly in gold or platinum—and every model is powered by an in‑house calibre. The reborn manufacture has created 75 movements to date, with signature achievements including the Lange 1 (the first regularly produced wristwatch with an outsize date) and the Zeitwerk with precisely jumping numerals; high‑complication landmarks such as the Datograph Perpetual Tourbillon and Triple Split underline the brand’s technical ambitions.

ALS 730 094 B12 1815 Tourbillon 2025 tif

A. Lange & Söhne’s September slate pairs two studies in precision: the Richard Lange Jumping Seconds built around a constant‑force escapement delivering one‑second impulses to a true jumping‑seconds display, with Zero-Reset and an end‑of‑power indicator; and the 1815 Tourbillon, which applies the brand’s patented stop‑seconds and Zero-Reset mechanisms to enable to‑the‑second setting within the classic 1815 design language.

A. Lange & Söhne 1815 Tourbillon ref. 730.094F

Lange 1815 Tourbillon Case Profile

The latest 1815 Tourbillon, a platinum limited edition of 50 pieces with a jet‑black grand feu enamel dial, is crafted entirely within the manufacture. The watch is resolutely classic at a glance, but its headline is a functional one: the one‑minute tourbillon at 6 o’clock is paired with stop seconds and Zero-Reset. Pulling the crown halts the tourbillon and snaps the seconds hand to zero so the minute hand can be aligned precisely with a minute marker—an uncommon, practical twist on a complication that’s too often appreciated only for its spectacle.

Lange positions this as a step beyond the conventional purpose of a tourbillon. The rotating cage continues to average out positional errors caused by gravity, but the addition of stop seconds and Zero-Reset lets the owner not just enjoy the rate stability of a tourbillon, but also set the time with true exactness. In practical terms, it eliminates the small drift you accept with a typical tourbillon when you push the crown back in. Here, you zero the seconds, align the minute hand to the track, and start cleanly on a known reference.

ALS 730 094 B11 1815 Tourbillon 2025 tif

Much of the appeal lies in the dial work. The grand feu enamel is made in‑house from first to final step, beginning with a white‑gold base and progressing through pigment preparation, multiple firings, and post‑firing surface treatment. In total, crafting a single dial demands more than 100 individual procedures over several weeks. The circular aperture for the tourbillon is chamfered by hand—designed to protect the surrounding enamel from damage—while the tourbillon bridge and the upper section of the cage receive a black polish. Depending on the angle, the finish reads as a mirror gloss or as a deep, jet‑black plane, adding visual drama to an otherwise reserved face.

The layout cleaves to the 1815 family code: Arabic numerals, a peripheral railway‑track minute scale that nods to the 19th‑century spread of precision timekeeping, and a clear hierarchy for legibility. Hour and minute hands are 18‑carat gold; the seconds hand is 18‑carat gold, rhodium‑plated.

Lange 1815 Tourbillon Dial Close Up

The case is 950 platinum and sized for wearability at 39.5mm in diameter and 11.3mm in thickness, with sapphire crystals front and back. It is delivered on a hand‑stitched glossy black alligator strap secured by a matching platinum deployant buckle.

As usual with Lange, the movement is where the brand’s identity is most legible. The hand‑wound calibre L102.1 offers a 72‑hour power reserve and beats at 3 Hz. It uses a freely oscillating, in‑house‑made balance spring with a traditional screw balance and is adjusted in five positions. In the centre of the tourbillon, a diamond endstone set in a screwed gold chaton provides both a technical and aesthetic focal point—a historic flourish seen on the firm’s most precious “1A‑quality” watches. The finishing vocabulary is pure Glashütte: untreated German silver three‑quarter plate, screwed gold chatons, and a hand‑engraved seconds bridge. Together with the stop seconds and Zero-Reset mechanisms, these details give the 1815 Tourbillon its particular mix of traditional construction and contemporary function.

ALS 730 094 B10 1815 Tourbillon 2025 tif

According to Anthony de Haas, Lange’s Director of Product Development, the watch reflects Lange’s approach of taking a 200‑year‑old invention made for improving rate accuracy and giving it a contemporary interpretation—one that not only runs accurately, but can be set with superb precision. It’s a succinct articulation of Lange’s wider philosophy: evolve tradition where it affects how the watch behaves on the wrist. For collectors who prize craft you can both see and feel, the 1815 Tourbillon’s combination of deep enamel and a tourbillon engineered for exact setting captures Lange’s familiar balance of restraint and rigour—an approach that has defined the brand from its 19th‑century origins to its modern revival.

A. Lange & Söhne 1815 Tourbillon ref. 730.094F pricing and availability

Lange 1815 Tourbillon Case Profile 2

This new Lange 1815 Tourbillon is available from September 2025. Price: €250,000

Brand A. Lange & Söhne
Model 1815 Tourbillon
Reference 730.094F
Case Dimensions 39.5mm (D) x 11.3mm (T)
Case Material 950 platinum
Water Resistance Not stated
Crystal(s) Sapphire front and back
Dial Black enamel dial, 750 white gold
Strap Hand-stitched black alligator leather
Movement Cal. L102.1
Power Reserve 72 hours
Functions Hours, minutes, tourbillon, stop seconds, and Zero-Reset
Availability September 2025
Price €250,000

A. Lange & Söhne Richard Lange Jumping Seconds ref. 252.056

Richard Lange Jumping Seconds Profile

Moving from the 1815 Tourbillon’s classical chronometry to a piece that elevates the smallest unit of time, the focus shifts to the Richard Lange Jumping Seconds. Here, a constant‑force escapement feeds a true jumping‑seconds display and works with Zero-Reset for exact setting. Pairing a salmon-coloured pink gold dial with a white gold case, the Richard Lange Jumping Seconds retains its compact 39.9 × 10.6 mm profile and is limited to 100 pieces.

Its regulator‑style, three‑circle layout places the large seconds at 12, with hours and minutes on the lower left and right; a triangular aperture between them turns red roughly ten hours before the power reserve expires. The architecture draws on Johann Heinrich Seyffert’s late‑18th‑century chronometer No. 93, while the model name nods to Richard Lange and his research into spring alloys.

Richard Lange Jumping Seconds Dial Close Up

Inside is the manually wound calibre L094.1 (390 parts, 50 jewels, eight screwed gold chatons), running at 3 Hz with a 42‑hour reserve. It integrates a constant‑force escapement, true jumping‑seconds mechanism and Zero-Reset; both the balance spring and remontoir spring are made in‑house, and the movement is assembled twice to Lange practice. Finishing is to type: a three‑quarter plate in untreated German silver, hand‑engraved balance cock, blued screws and screwed gold chatons, all visible through the sapphire caseback. This is the fourth model version of the Richard Lange Jumping Seconds—and the fourth Lange watch to feature a pink‑gold dial—with case size and architecture unchanged.

A. Lange & Söhne Richard Lange Jumping Seconds ref. 252.056 pricing and availability

Richard Lange Jumping Seconds Case Back

This sultry salmon Richard Lange Jumping Seconds is available from September 2025. Price: €110,000

Brand A. Lange & Söhne
Model Richard Lange Jumping Seconds
Model 252.056
Case Dimensions 39.9mm (D) x 10.6mm (T)
Case Material 750 white gold
Water Resistance Not stated
Crystal(s) Sapphire front and back
Dial Salmon dial, 750 pink gold
Strap Hand-stitched dark-brown alligator leather
Movement Cal. L094.1
Power Reserve 42 hours
Functions Hours, minutes, end of power indicator, jumping seconds with stop seconds and Zero-Reset
Availability September 2025
Price €110,000