Is your Lange
the real deal?
A. Lange & Söhne represents the pinnacle of German watchmaking from Glashütte, Saxony. With prices starting around $25,000 and reaching into the millions, every Lange is finished to extraordinary standards. The brand's limited production and exceptional value have attracted increasingly sophisticated counterfeiters.
How to authenticate an A. Lange & Söhne
Three-Quarter Plate Movement
Lange's signature German silver movement architecture with hand-engraved balance cock. The three-quarter plate is a hallmark of Glashütte watchmaking tradition — a single large plate covering most of the movement, finished with Glashütte ribbing and gold chatons. Counterfeits cannot replicate this level of hand-finishing.
Dial Quality
Solid silver or gold dials with crisp printing, often featuring Lange's iconic oversized date (Großdatum). The dial finishing should be flawless — whether argenté, enamel, or solid gold. Text printing is razor-sharp under magnification. Counterfeits show fuzzy text, uneven surfaces, or poorly executed date windows.
Case Finishing
Mirror-polished surfaces with sharp, perfectly defined edges. Lange cases are made exclusively from precious metals (18k gold or platinum) and exhibit exceptional finishing — every surface is hand-polished to perfection. Edges are crisp and angular, never rounded or soft. Counterfeits lack this precision.
Crown
18k gold or platinum crown with the Lange "1" logo cleanly engraved. The crown should feel weighty and operate with smooth, precise action. The "1" logo refers to "Lange 1," the brand's iconic reference. Counterfeits have lightweight crowns with poorly engraved or missing logos.
Case Back
Sapphire display caseback showing the movement — all modern Lange watches are designed to showcase their extraordinary movements from the back. The sapphire should be crystal-clear, and through it you should see the elaborately finished movement with hand-engraved balance cock, Glashütte stripes, and blued screws.
Serial Numbers & Engravings
Case and movement numbers should match Lange's records. Engravings are deeply and precisely cut, with perfect font consistency. The movement serial number is visible through the display caseback. Counterfeits often have mismatched numbers, shallow engravings, or incorrect font styles.
A. Lange & Söhne counterfeit warning signs
No Display Caseback
All modern A. Lange & Söhne watches feature a sapphire display caseback to showcase the movement. A solid caseback on what claims to be a modern Lange is an immediate red flag — the brand is proud of its movements and always displays them.
Movement Without Hand-Finishing or Glashütte Stripes
Every genuine Lange movement features meticulous hand-finishing including Glashütte ribbing, hand-engraved balance cock, and polished bevels. A movement lacking these details, or showing machine-applied decoration, is not authentic.
Stainless Steel Case
A. Lange & Söhne exclusively uses precious metals — 18k gold and platinum. The brand has never produced a stainless steel watch. If the case is steel, it is definitively counterfeit regardless of any other details.
Incorrect Big Date Window Proportions
Lange's iconic Großdatum (big date) uses two separate discs displayed through precisely sized apertures. The proportions and spacing of these windows are exact on genuine watches. Counterfeits frequently get the window size, spacing, or digit alignment wrong.
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Frequently asked questions
Does A. Lange & Söhne make steel watches?
No. A. Lange & Söhne exclusively uses precious metals — 18k white gold, rose gold, yellow gold, platinum, and occasionally honey gold (their proprietary alloy). Any steel Lange is fake.
What makes Lange movements special?
Every Lange movement is assembled twice — first to test function, then disassembled, cleaned, and reassembled with final finishing. Components are hand-engraved, and the brand uses German silver (untreated) that develops a warm patina over time.
How many watches does Lange produce per year?
A. Lange & Söhne produces approximately 5,000 watches per year — extremely limited compared to major Swiss brands. This scarcity drives both value and counterfeiting incentive.