Quick answer

A. Lange & Söhne has never built a watch called the Lange 3. The phrase in fake Lange 3 101.035 searches is a mashup: people mean the Lange 1, and 101.035 is a reference inside the 101.xxx block that the Lange 1 lives in. So the real question is whether a Lange 1 carrying that reference number can be faked, and how you tell. Short version: copies exist, and almost every one of them fails on the movement, the outsize date, and the applied dial hardware. The case front can look convincing in a low-resolution photo. The caseback cannot.

What reference 101.035 actually is

The Lange 1 is a 38.5 mm watch with an off-center time dial, a small seconds subdial, an outsize two-disc date at the upper right, and a power-reserve indicator at the upper left. The 101.xxx block covers several case metals and dial colors produced across different years, which is exactly why reference numbers get garbled by resellers and by search engines.

Before you compare any watch to a spec sheet, confirm the correct metal and dial color for 101.035 against the brand's own product archive, then check that the caseback engraving matches. Mislabeled references are common, and on the replica side the mislabeling is often deliberate. A seller who cannot tell you which metal the reference should be in is a seller you walk away from.

Why Lange copies exist at all

The brand produces only a few thousand watches a year, and the Lange 1 is its most recognizable design. That combination, scarce supply plus a famous silhouette, is what draws counterfeiters. The fakes tend to be built around a generic 38 to 40 mm case with a printed dial dropped inside, because the actual dial layout is hard to reproduce cheaply.

Case and dial tells

• Numerals are applied in solid gold on the genuine piece, with polished bevels that catch light from an angle. Copies use printed or glued-on markers that sit flat and look gray in daylight.
• The outsize date is two separate discs behind a framed aperture. On fakes the two digits are often misaligned, the font is wrong, and the frame edges are sharp instead of chamfered.
• Hands are gold for hours and minutes, with blued steel hands elsewhere on the layout. Cheap copies show stamped, flat hands with no polishing at the edges.
• Caseback engraving on the real watch is deep, crisp, and consistent in spacing. Laser-etched fakes look shallow and fuzzy under a loupe.
• Crystal glare control matters more than people expect. The genuine sapphire disappears at most angles. A blue or milky cast across the dial is a warning sign.

The movement is where copies fall apart

This is the fastest filter I know. The Lange 1 runs on a hand-wound calibre with a three-quarter plate in untreated German silver, screwed gold chatons, blued screws, and a balance cock engraved by hand. Each engraving is cut by one engraver and is unique to that watch.

A replica movement cannot copy that, so it hides. Ask for a clear macro photo of the balance cock and the engraving. If the seller sends a blurry shot, a stock image, or a refusal, the conversation is over. Glued-on decorative plates over a basic movement are also common, and they show up in photos as screws that do not sit in anything.

Papers, serials, and service history

A genuine Lange 1 usually arrives with its box, certificate, and a paper trail. Ask for the serial on the movement and the case number on the back, and confirm they belong to the same watch. Then ask whether the watch has been serviced and by whom. The brand will not service or touch a counterfeit, and an independent watchmaker will typically decline too, so a fake is a dead end for repairs.

Legal and money reality in the US

Counterfeit watches cannot be legally imported into the United States, and selling them carries real exposure. Shipments get seized by customs, buyers have no recourse when a payment vanishes, and the resale value of a fake is effectively zero. If you are weighing a cheap copy against the real thing, you are comparing a watch to a liability.

Better paths to the same look

If the goal is German design and clean dial architecture rather than the badge, brands such as Nomos deliver that language at a fraction of the price, with a warranty and a service network. If you want the actual Lange 1, buy pre-owned from a dealer who will put the authentication in writing and accept a return. That is a slower purchase and a much better one.