Quick answer

A fake A. Lange & Söhne is a watch that copies the case, dial, or name of the German brand. The real watches are built in Glashütte, Saxony. A. Lange & Söhne produces about 5,000 to 6,000 pieces a year. Street prices for a replica run from $50 to $900. Genuine models start near $20,000 and pass $100,000. That price gap is the first signal.

What the real watch carries

  • In-house mechanical movement. Lange has never built a quartz watch.
  • German silver three-quarter plate. The alloy has no plating, so it dulls with age.
  • Gold chatons held by blued screws.
  • Hand-engraved balance cock. Two watches never carry the same engraving.
  • Sapphire caseback on most references.
  • Outsize date on the Lange 1: two disks, one for the tens digit and one for the units.
  • Serial number stamped on the movement and engraved on the case.

Common tells on a fake

A quartz movement is a hard stop. Lange has not made a battery watch in its history. Look through the caseback for a balance spring, a winding stem, and a ratchet wheel. A blank plate with a laser-etched logo is not a Lange movement.

Check the date. The outsize date on the Lange 1 sits at 1 o'clock. The two disks must meet inside one frame. Fakes print a flat number or cut a window that is too small.

Measure the case. The classic Lange 1 is 38.5 mm across. The first Datograph is 39 mm. Many replicas run 1 mm to 2 mm wider because the builder uses a stock case.

Weigh the watch. Solid gold cases feel dense. Gold-plated brass and steel do not.

Read the dial text. Look at the A. Lange & Söhne signature and the Made in Germany mark. Fakes show misspelled words, uneven spacing, or a wrong font.

Replica tiers

Low tier: $50 to $150. Quartz or a rough automatic. Plated alloy case. Printed dial.

Mid tier: $150 to $400. Chinese automatic such as a Seagull or a copy of an ETA 2824. 316L steel case.

High tier: $400 to $900. These copy the dial layout of a Lange 1 or a Datograph. The movement does not match the L901.1 architecture. No builder at this price makes a 1:1 copy of the three-quarter plate.

How to verify a watch

  1. Take the watch to a Lange boutique or an authorized service center.
  2. Give the movement serial number to the brand. Lange keeps a record.
  3. Ask for a service estimate. Lange will not service a counterfeit.
  4. Compare the lug shape and caseback screws against a factory photo.

Lange does not sell new watches through its own website. A new A. Lange & Söhne sold on a marketplace or a social media account is a warning sign.

Legal note

In the United States, trafficking in counterfeit goods is a federal crime under 18 U.S.C. 2320. Penalties reach 10 years in prison for a first offense. U.S. Customs and Border Protection can hold or seize a shipment at the border. Similar laws apply in the EU and most of Asia.