Short answer
A fake Jaeger-LeCoultre Reverso Small Seconds is a counterfeit copy of a hand-wound rectangular watch, sold under references that include 2438522. Most copies fail on four points: the case does not swivel on pins, the movement is quartz or a low-grade automatic, the small seconds track is printed wrong, and the engraving on the metal is shallow.
What the real watch is
Jaeger-LeCoultre has built the Reverso since 1931. The case slides and turns 180 degrees inside a cradle, so the owner can hide the dial and show a plain face. The Classic Small Seconds runs calibre 822, a hand-wound movement listed at 108 parts, 21 jewels, 21,600 vibrations per hour and a 42-hour power reserve. The steel case measures about 45.6 mm by 27.4 mm and about 7.6 mm thick. The dial carries a small seconds hand at 6 o'clock, a rectangular guilloche center, a railway minute track and Dauphine hands.
Case and swivel
Replicas of this model are fewer than Rolex copies because the swivel is hard to fake at low cost. Checks:
- Turn the case. A real one pivots on two pins, passes a detent and locks flat on both faces. Copies glue the back on, or the case turns and grinds.
- Measure thickness. A quartz copy needs a battery and a spacer, so the case runs 1 mm to 2 mm deep.
- Look at the crown. It sits flush in the cradle cutout on the real watch and does not rub the metal.
- Read the engraving. Genuine numbers and logos are cut into the metal. Copies use laser etching that reads grey and flat.
Dial and movement
The name on the dial is printed in a thin, even serif. Copies use a heavier font and set the words too far from the center. The seconds track on a genuine dial is fine, and its hand reaches the printed marks. Compare hand length and track width with a dealer photo.
Open the case. Calibre 822 shows Geneva stripes, blued screws, a swan-neck regulator and a balance wheel. A quartz copy has no balance wheel and no winding crown action. A Chinese automatic has a rotor where the 822 has none.
Steps before you buy
- Ask for the reference and serial. Compare both against the maker's listing or an authorized dealer.
- Request photos of the case turned 180 degrees, with the back face in frame.
- Ask for a movement photo with the caseback off.
- Check the price. The steel model lists in the thousands of US dollars. Copies sell for a few hundred. A low price on a sealed watch is the first signal.
- Send the watch to a watchmaker for a service quote. A serial that does not return from the maker's archive marks a fake.
What photos cannot show
Weight, the feel of the detent and the sound of the winding click do not survive a photo. Buy from a seller who accepts a return, or meet at a watchmaker's bench and open the case before money changes hands.