Short answer
A. Lange & Söhne does not make a watch called the Lange 2 Tourbillon. The term comes from the replica trade, where sellers use Lange 2 as a loose label for copies of the Lange 1 Tourbillon, the Lange 1 Tourbillon Perpetual Calendar, or the older Lange 1 Tourbillon Handwerkskunst. So when a listing says replica Lange 2 tourbillon, you are shopping for a Lange 1 style case: off-center time dial, outsize date at the top right, power reserve at 3 o'clock, and a tourbillon cage sitting where the small seconds normally goes at 5 o'clock. Confirm that layout before you pay, because the name alone tells you nothing about which watch will arrive.
Why the name matters
Factory references are the only reliable way to compare one seller against another. Lange 2 is not a reference. A seller who uses it may be holding a Lange 1 Tourbillon copy, a Lange 1 copy with a fake tourbillon window cut into the dial, or a generic dress watch with a hand-wound movement and no cage at all. Ask for the layout, the case size, the movement name, and photos of the dial in daylight. If the answer stays vague, move on.
What to verify on the watch
Tourbillon cage
The genuine watch runs a one-minute tourbillon with a stop-seconds mechanism and a hand-finished steel bridge. Put a loupe on the cage of a copy and watch for one full minute. The balance wheel should oscillate inside the rotating carriage. A disc that spins while the balance sits still outside it is decoration, not a tourbillon.
Dial and printing
Check the position of the outsize date, the spacing of the Roman numerals on the time dial, and the thickness of the lettering. Copies tend to widen the date window, shift the subdial, and print text that sits low or runs off the edge. Ask for a straight-on photo, not an angled one.
Case and movement
The original Lange 1 Tourbillon measures about 38.5 mm across and sits near 10 mm thick. Many copies arrive at 40 mm or more with extra height from the tourbillon module. Measure with calipers if you can, or ask the seller for exact numbers. Check crown action, caseback screws, and whether the sapphire has any blue tint.
Price tiers
- Under $150: quartz or basic automatic with a printed or rotating fake tourbillon.
- $250 to $600: Chinese hand-wound tourbillon, usually Seagull-derived, with a real rotating cage.
- $800 and up: custom builds with decorated bridges, better finishing, and sapphire on both sides.
For scale, pre-owned genuine Lange 1 Tourbillon watches trade in the six-figure range. No replica at any tier matches the movement architecture, the German silver plates, or the hand engraving.
Red flags
- Listings that name Lange 2 with no reference, no case size, and no movement details.
- Photos lifted from a dealer or auction page instead of the seller's own shots.
- A Swiss made claim on a tourbillon priced under $300.
- No return window, no tracking, or payment by gift card and crypto only.
Ownership notes
A tourbillon copy needs service like any mechanical watch, and many local watchmakers will not touch a Chinese tourbillon because parts are hard to source. Plan on light wear, keep it away from water regardless of any rating printed on the case, and wind it at the same time each day if it is hand-wound. Store it in a dry place and avoid setting the date between 9 p.m. and 3 a.m., when the date mechanism is engaged.
Questions to ask before you pay
- What is the exact case diameter and thickness?
- Which movement is inside, and does the cage rotate once per minute?
- Can you send a video of the running watch with the crown pulled to hacking position?
- What is the return policy if the tourbillon stops within 30 days?
- Is the sapphire crystal real sapphire or mineral glass?
Get written answers to all five. A seller who handles them without stalling is the one worth your money.