Is your A. Lange & Söhne
the real deal?
A. Lange & Söhne represents the pinnacle of German watchmaking, with hand-finished movements assembled twice for perfection. Their watches command prices from $20,000 to over half a million dollars, making them a lucrative target for sophisticated counterfeiters.
How to authenticate a Lange
German Silver Movement
Genuine Lange movements use untreated German silver (maillechort) that develops a warm golden patina over time. The three-quarter plate design is distinctively Lange. Counterfeits use rhodium-plated brass that appears too shiny and white, lacking the characteristic warmth of genuine German silver.
Hand-Engraved Balance Cock
Every Lange watch features a unique hand-engraved balance cock — no two are exactly alike. The engraving is deep, flowing, and artistic. Counterfeits use machine-stamped patterns that are uniform, shallow, and lack the organic quality of genuine hand engraving.
Outsize Date Display
The Lange outsize date uses two separate discs visible through two windows. The digit font should match perfectly between both discs, with precise alignment and no visible gap between the windows. Counterfeits often have mismatched fonts, uneven spacing, or a visible line between the discs.
Case Finishing and Materials
Lange cases are made from 18k gold, platinum, or white gold with immaculate finishing. Edges are chamfered by hand with mirror-polished bevels. The case should feel weighty and substantial. Counterfeits use gold-plated base metals with machine-finished edges that lack the hand-polished sharpness.
Blued Steel Screws
Genuine Lange movements use thermally blued steel screws that have a deep, consistent cornflower-blue color achieved through heat treatment. Each screw head is individually polished. Counterfeits use chemically colored screws with an uneven, darker blue that lacks depth.
Dial Printing and Finishing
Lange dials feature exceptional printing with perfectly formed text and indices. Silver dials have a fine-grained texture. Applied indices are solid gold. All elements should be flawlessly aligned. Counterfeits have blurry text, misaligned indices, or rough dial finishing.
A. Lange & Söhne counterfeit warning signs
Shiny White Movement Plates
Genuine Lange movements use untreated German silver with a warm, slightly golden tone. If the movement plates appear bright white or overly polished like rhodium-plated surfaces, the watch is counterfeit.
Machine-Stamped Balance Cock
The hand-engraved balance cock is unique to each Lange watch. If the engraving appears perfectly uniform, shallow, or repetitive like a stamped pattern, it is machine-made and indicates a counterfeit.
Lightweight Feel
Genuine Lange watches use precious metals (gold or platinum) and feel substantial on the wrist. If a purported Lange feels light or hollow, it uses base metals and is counterfeit.
Date Disc Font Mismatch
On the outsize date, both digit windows should use identical typography. If the fonts don't match between the ones and tens discs, or if the digits appear blurry, the watch is fake.
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Frequently asked questions
What makes A. Lange & Söhne special?
A. Lange & Söhne is one of the finest German watchmakers, based in Glashütte, Saxony. Founded in 1845 by Ferdinand Adolph Lange, the brand is renowned for its exceptional hand-finishing, German silver (maillechort) movements, and the iconic outsize date. Every movement is assembled twice — first to test, then disassembled, cleaned, and reassembled for final quality. They produce only about 5,000 watches per year.
Are A. Lange & Söhne watches counterfeited?
Yes, despite their extremely high price points ($20,000 to over $500,000), Lange watches are counterfeited. The Lange 1 and Saxonia are the most commonly faked models. High-quality counterfeits can look convincing externally but always fail upon movement inspection — no counterfeiter can replicate Lange's hand-decorated German silver movements with their distinctive three-quarter plate design.
How can I verify a Lange watch is authentic?
The most reliable method is movement inspection through the exhibition case back. Genuine Lange movements feature hand-engraved balance cocks, blued screws, Glashütte ribbing, gold chatons, and a three-quarter plate in untreated German silver. The outsize date on the Lange 1 should use two separate discs with perfectly matched typography. Lange also provides authentication services through their boutiques.