The watch that relaunched a brand and reshaped modern horology. The Lange 1's asymmetric dial, outsize date, and hand-wound caliber have remained essentially unchanged since 1994 — a mark of total conviction in the original design. Early references with solid casebacks (pre-1997), the first generation Little Lange 1, the Tourbillon Perpetual (720.025), and Handwerkskunst editions command collector premiums. All metals, all complications, all generations purchased.

When the original Datograph launched in 1999, it stunned the watch world — a wholly in-house flyback chronograph with a precisely jumping minute counter and outsize date, from a brand that was only nine years old. The 2024 Datograph Perpetual Tourbillon Honeygold Lumen (ref. 740.055FE) is among the most technically dazzling watches Lange has produced. The 25th anniversary Handwerkskunst (405.048F, 25 pieces) is an instant collector piece. All Datograph variants purchased.

Named for Ferdinand Adolph Lange's birth year, the 1815 family embodies the most classical expression of Glashütte watchmaking — Arabic numerals, railway-track minute scale, and subsidiary seconds at 6 o'clock evoking historic pocket watches. The 1815 Rattrapante Perpetual Calendar (421.032) unites three complications in one of watchmaking's most satisfying architectures. All sizes, all metals, all complications purchased.

The Zeitwerk is among the most conceptually audacious watches in fine horology — a mechanical movement with a jumping digital display, constant-force escapement, and (in its chiming variants) acoustic complications of extraordinary complexity. The Zeitwerk Minute Repeater (ref. 147.025) was the first watch to combine a jumping numerals display with a decimal minute repeater. The Honeygold Lumen (ref. 142.055, 200 pieces) is among the most covetable of all Lange limited editions. All 17 references purchased.

The Saxonia houses some of Lange's most ambitious engineering in its most restrained aesthetic language. The Triple Split (424.xxx) is the world's only rattrapante chronograph capable of measuring parallel elapsed times of up to 12 hours. The Saxonia Thin at 6.1mm is among the thinnest hand-wound watches from any serious manufacture. All Saxonia and Langematik variants, including early Sax-O-Mat automatics, purchased.

Named for Ferdinand Adolph's son Richard — a precision watchmaker and pioneer of the observatory regulator — the Richard Lange family prioritizes absolute legibility and mechanical accuracy above all else. The Tourbillon Pour le Mérite (760.025) features a fusee-and-chain transmission for constant-force delivery, one of watchmaking's oldest and most demanding complications. All variants in all metals purchased.

Lange's first steel watch and first bracelet watch — the Odysseus caused a sensation at its 2019 launch. Water-resistant to 120m with an integrated bracelet, it brought Lange's movement finishing and outsize date into a casual-luxury context that collectors immediately embraced. The 2025 Odysseus Honeygold (ref. 363.150, 100 pieces) is the first solid-gold bracelet version and among the most desirable A. Lange & Söhne pieces of the decade.

The A. Lange & Söhne Grand Complication (912.025) at six pieces is the rarest modern Lange — a perpetual calendar, rattrapante chronograph, and minute repeater in a single platinum case. The Lange 31 holds a 31-day constant-force power reserve. The 2025 Minute Repeater Perpetual represents the current summit of Lange's complication architecture. These are among the most serious collector pieces available in modern watchmaking.

Lumen models feature Lange's translucent sapphire dial treatment — UV-reactive subdials glowing against a semi-transparent dark face. Used across the Lange 1, Grand Lange 1, Datograph Perpetual Tourbillon, and Zeitwerk families. Handwerkskunst (literally "the art of craftsmanship") editions add tremblage engraving or grand feu enamel decoration to the dial and movement, making them effectively signed art objects. Production is typically under 30 pieces. All Lumen and Handwerkskunst references purchased.

The rectangular Arkade (1994 inaugural) and Cabaret are among the most understated yet historically important Lange references — rare, architecturally elegant, and often overlooked by the broader market. The Langematik Sax-O-Mat, with its proprietary patented automatic winding system and outsize date, is a collector's favorite. Early pieces, discontinued references, and first-generation examples in any condition are welcome.

Honeygold is A. Lange & Söhne's proprietary 18k gold alloy — harder than conventional gold, with a distinctive warm honey-yellow tone used exclusively for special editions. First seen in 2010, it has appeared on the Zeitwerk Decimal Strike (100 pieces), Zeitwerk Lumen (200 pieces), Datograph Perpetual Tourbillon Lumen, Lange 1 Daymatic (250 pieces), and the 2025 Odysseus (100 pieces). Every Honeygold piece is automatically limited — all examples welcomed.

A. Lange & Söhne has participated in Only Watch — the biennial Monaco charity auction — multiple times, contributing unique commissions including a 1815 Hampton Court Edition (2022) and the Datograph Hampton Court (405.047, 2024) whose entire proceeds benefit the King's Trust. One-of-a-kind pieces, customer commissions, and watches with notable auction provenance are among the most carefully evaluated and most generously purchased pieces in the secondary market.