Short answer
There is no Lange 2. A. Lange & Söhne builds the Lange 1, the Lange 1 Time Zone, the Lange 1 Moon Phase, and a few other families, and none of them carries that name. The "405.031" portion looks like a five-digit Lange reference number, the kind stamped inside a caseback. Pairing an invented model name with a real-looking number is a habit of replica listings, not of the brand. So when a listing reads "fake Lange 2 405.031," read it as a replica listing with a borrowed label, and treat the label itself as your first warning.
Why the label matters more than it looks
Most people searching that phrase are trying to line a listing up with a real watch. That instinct is correct. Lange reference numbers are strict: a different case metal, a different dial color, or a new movement earns a new number. A seller who shuffles names and numbers together is usually working from a template rather than from a watch.
- No catalog model called Lange 2 appears in any Lange catalog I have read.
- The same reference gets attached to different photos across listings.
- Specs get copied from another model, like a chronograph dial described with a small dress-watch case size.
How I judge a Lange replica
Case and proportions
The Lange 1 measures 38.5 mm across and sits close to 10 mm thick. A build that arrives at 42 mm with a thick slab of a midcase is wrong on sight, no loupe required. Check the lugs too. Lange lugs are slim, sharply angled, and flow into the case without a step. Ask the seller for measured diameter and thickness on the actual piece, because catalog numbers get reused for builds that do not match them.
Dial and the outsize date
The outsize date is the hardest part to fake well, and the easiest place to spot a cheap build. Real ones use two separate discs for tens and units, so the numbers can sit at slightly different depths and the jump at midnight happens as one clean motion. On low-end replicas you often see a single printed date, one disc behind both windows, or numbers that do not share a baseline. Then check the applied indices, the printed signature, the small seconds, and the power reserve hand marked AUF and AB.
The movement
If the listing shows a caseback, look for a three-quarter plate, a hand-engraved balance cock, screwed gold chatons, and blued screws. Practically nothing in the few-hundred-dollar range has any of that. One easy tell: the Lange 1 is hand-wound, so a rotor spinning behind the display back is an instant mismatch. A generic automatic with a decorated rotor cover is the most common substitute.
Questions to ask before you pay
- Which exact model and reference is this build copying, and can you show a real example beside it?
- Is the movement hand-wound or automatic, and what is the base caliber?
- Measured diameter and thickness, in millimeters, on your photo?
- Photos of the actual unit, front and back, rather than stock images?
What no replica gets right
Finishing. A real Lange has black-polished steel parts, hand-applied anglage on the bridges, and a balance cock engraved by hand, one at a time. Replicas stamp or laser-cut those details, and under a loupe the difference is plain. That does not make a replica worthless. It just means you should pay replica money for one and judge it as a look, not as machinery. Hunt for correct proportions, a clean dial, and a caseback that does not embarrass itself, and you will get what you paid for.