A replica Jaeger LeCoultre Reverso 3988420 is a copy of the JLC Reverso, the rectangular watch whose case flips over to protect the dial. Prices run from about $60 for a quartz model to $400 or more for a decorated automatic version. It is not a Jaeger-LeCoultre watch, and no replica contains a real JLC movement.

What Does the 3988420 Code Mean?

Codes like 3988420 come from the seller, not from the brand. Two shops can use the same six digits for two watches with different cases, dials, and movements, so the number tells you almost nothing on its own.

Jaeger-LeCoultre runs its own reference system and lists every model on its own site. A genuine Reverso carries a brand reference, a serial number, and papers that match. None of that exists on a first copy listing.

Why the Reverso Looks Like That

The Reverso arrived in 1931 for British Army officers in India who played polo. A stray mallet strike could smash the crystal, so the case swivels on machined tracks and turns the dial face down against your wrist. Flip it back and the watch reads as normal.

That Art Deco rectangle has stayed in production for close to a century, which is why replica makers copy it in volume. The shape is simple. The mechanism inside is not.

How Do Replica Reverso Versions Differ?

Sellers split stock into grades, and the grade decides the movement, the metal, the glass, and how the swivel feels in your hand.

Budget quartz tier (about $60 to $120)

  • Battery quartz movement with a ticking seconds hand.
  • Low-grade steel case under a thick chrome plate.
  • Mineral or acrylic glass that scratches on a door frame.
  • Swivel that wobbles and loosens within months.

Every genuine Reverso is mechanical. A ticking second hand is the fastest giveaway on a wrist.

Mid tier automatic (about $150 to $300)

  • Chinese or Japanese automatic with a sweeping seconds hand.
  • 316L stainless steel case with a screw-down or snap back.
  • Sapphire crystal on better examples, mineral on the rest.
  • Printed dial and a flat, shallow caseback.

Super clone or 1:1 tier (about $350 and up)

These copies match case dimensions, dial layout, and movement decoration. Some use a modified automatic fitted with a custom rotor and bridges styled after a JLC caliber. That imitation stops at the surface, because Jaeger-LeCoultre does not sell movements to third parties.

What Should You Check Before Buying?

  1. Ask for the case size in millimeters, not words like large or medium.
  2. Ask which movement sits inside and whether it is quartz or automatic.
  3. Request photos of the caseback engraving and the swivel from both sides.
  4. Confirm the return window and the payment method in writing.
  5. Weigh the watch if you can. Solid gold feels far heavier than a steel copy.

Genuine vs Replica: The Differences That Show

  • Movement: an in-house JLC caliber against a generic or clone movement.
  • Metal: solid 18k gold or steel against plated brass or 316L steel.
  • Caseback: deep hand engraving on many genuine Reversos, light laser etching on copies.
  • Dial: applied indices and guilloche texture against printed markers and flat paint.
  • Service: JLC repairs its own watches. A replica goes to a local watchmaker or the drawer.
  • Value: a genuine Reverso trades on the used market. A replica has no resale value at all.

Is Buying a Replica Watch Legal?

In the United States, trafficking in counterfeit goods is a federal crime under 18 U.S.C. 2320. A personal purchase is a different question, but customs officers can seize a package at the border and you have no way to recover that money.

Brands also file civil suits against sellers, and against buyers who resell at volume. Some countries confiscate counterfeit items on entry, so travel with one carries its own risk.

Who Buys a First Copy Reverso?

Most buyers want the Art Deco shape without the four-figure price of a genuine steel Reverso. Others want a watch for trips where a real one would draw the wrong eyes. A smaller group buys a copy to wear for a month before committing to the real thing.

Set your expectations. A replica Jaeger LeCoultre Reverso 3988420 keeps time and reads as a Reverso from across a table. It will not fool a jeweler, and it will not outlast a decade of daily wear.

Common Questions About the Reverso 3988420

Does the Reverso 3988420 case really flip?

If the listing shows a swivel mechanism, yes. Cheap versions flip with a gritty, loose motion. Genuine ones glide on machined tracks with almost no play.

What movement is inside a replica Reverso?

Budget copies run on quartz. Mid-tier copies use Chinese or Japanese automatics. Top-tier copies use decorated clones styled after a JLC caliber, and none of them are genuine Jaeger-LeCoultre movements.

Can a jeweler spot a replica?

Yes, in seconds. The movement, the crown, the crystal profile, and the engraving depth are all easy tells for anyone who handles Reversos often.

Does a replica Reverso hold value?

No. Replicas lose most of their value the moment they ship, and no dealer or auction house will buy one back.

How long does a replica Reverso last?

A quartz copy often fails within a year, while a decent automatic can run several years with basic care. Neither matches the service life of a genuine watch, and neither can be repaired with factory parts.