What Is a Fake 1815 Rattrapante?
A fake 1815 Rattrapante is a replica of the A. Lange & Söhne 1815 Rattrapante, a hand-wound split-seconds chronograph from the Saxon maker's 1815 family. Genuine examples in platinum or Honeygold sell for six figures on the secondary market. Replicas copy the case, dial, and hands but almost never copy the rattrapante mechanism that gives the watch its name and its price.
That last point matters more than any logo. A split-seconds chronograph is one of the hardest complications to build, and the cost of a real one is the reason replicas exist at all.
How the Genuine Split-Seconds Function Works
A rattrapante runs two chronograph seconds hands stacked on one pinion. Both start together when you press the chronograph pusher at 2 o'clock. Press the split pusher on the left side of the case and one hand freezes while the other keeps sweeping, so you can time two laps, two runners, or two events from a shared start.
Press the split pusher again and the frozen hand jumps forward to rejoin the running hand. Repeat as often as you like.
Inside, that trick needs a clamp, an isolator, a heart-piece cam, and a column wheel to sequence the pushers. A. Lange & Söhne finishes those parts by hand and engraves the balance cock, which is why a real 1815 Rattrapante costs as much as a car.
What Fake 1815 Rattrapante Watches Get Right
Good replicas start with the outside, because the outside is the easy part. Case shape, crystal profile, and dial printing can be copied from photos.
- Case size near the original 41 mm footprint, though many fakes run thicker.
- Applied numerals, railroad minute track, and blued-steel hands in the 1815 style.
- Sapphire crystal, sometimes with an anti-reflective coating.
- An exhibition caseback that shows a decorated movement.
- Alligator-look strap with a signed-style buckle.
Where Replicas Fall Short
The split-seconds hand is the first giveaway. Many fakes fit a dummy pusher that does nothing, or a split hand welded to the main hand. Others let the hand stop but never rejoin.
The movement is the second. A genuine 1815 Rattrapante uses an in-house Lange caliber with Glashütte ribbing, blued screws, gold chatons, and a hand-engraved balance cock. Replicas use a bought-in chronograph movement with a decorative plate on top, and the finishing looks printed or stamped instead of cut.
Weight and materials finish the list. Platinum and Honeygold have real heft. Most fakes use steel with plating or PVD, so they feel light in the hand and wear through at the lugs and caseback edges.
How to Check a Fake 1815 Rattrapante Before Buying
- Run the chronograph, then press the split pusher. One hand should stop while the other keeps sweeping. If nothing happens or both hands stop, the rattrapante function is not there.
- Press the split pusher a second time. The stopped hand should snap forward and match the running hand. A hand that drifts or lags points to a weak mechanism.
- Reset and check alignment. Both seconds hands should land on 12 with no offset.
- Look through the caseback. Check for a column wheel, an engraved balance cock, and screws that sit flush. Printed decoration on the bridges is a red flag.
- Weigh the watch. A platinum or gold case feels heavy for its size. A light case on a six-figure design is a copy.
- Ask which movement is inside. A seller who cannot name the caliber is guessing.
What Movement Sits Inside a Fake 1815 Rattrapante?
Three tiers show up in the market. The cheapest use quartz, with subdials that never move. Mid-range replicas use an Asian 7750 chronograph, which starts, stops, and resets but has no split function at all. The top tier uses a hand-wound chronograph movement with a cosmetic split hand and decorated bridges.
Prices track those tiers. Quartz copies start under $100. Automatic chronograph replicas sit between $150 and $400. Higher-grade hand-wound versions with a better case and dial run $500 to $900, and a few sellers ask more.
None of them hold a genuine Lange caliber, and buying one as an investment is a mistake.
Is Selling a Fake Watch as Genuine Legal?
No. Passing off a counterfeit as an authentic branded watch is illegal in the US and most of Europe, and customs officers seize shipments. Buying a replica for personal wear is a separate question in most jurisdictions, but reselling it as real is fraud.
FAQ
Does any fake 1815 Rattrapante have a working split-seconds?
A few high-end replicas do. They cost several times more than a standard fake, and even then the mechanism is a simplified version of the real thing. Test the pusher in person before you trust that claim.
How can I tell a fake 1815 Rattrapante from a real one?
Start with the split pusher, then the movement finishing, then the case metal. Genuine Lange watches have hand-engraved balance cocks and a serial number that matches the papers. A fake misses at least one of those.
Is a fake 1815 Rattrapante the same size as the original?
Close, but not identical. Copies often add 1 mm or 2 mm of thickness to house a thicker movement, and the lugs sit differently on the wrist.
Why is the 1815 Rattrapante so hard to copy?
The split-seconds mechanism needs extra parts, tighter tolerances, and careful adjustment. That work costs money, and a replica maker selling at $300 cannot recover it.
Do replica 1815 Rattrapante watches hold value?
No. A replica loses value the moment you buy it, and spare parts are hard to source when something breaks.