How to spot a fake
Reverso

Work the reversing case. Push the case sideways in its cradle, let it slide, and flip it 180 degrees. On a genuine Reverso the action is smooth and firmly toleranced, and the case seats back into its cradle so precisely that the seam nearly disappears and there is no wobble or side-to-side play. Cheap fakes feel loose, gritty or rattly, and the flipped case sits with a visible gap or rocks in its frame. This mechanical behaviour is the hardest thing for a counterfeiter to copy.

The rectangular case sits inside a cradle with rails on each long side. You slide the case within the cradle, and once it clears the rails it pivots 180 degrees on a horizontal axis and locks with the reverse now facing up. On a Monoface the reverse is a blank metal panel meant for engraving; on a Duoface it reveals a fully functioning second dial. The action should feel fluid and precise with a defined stop at each end, an engineering idea first patented by Jaeger-LeCoultre in the early 1930s.

Gadroons are the parallel fluted bars machined into the top and bottom edges of the case, a signature Art Deco detail. Men's Reverso models classically carry three gadroons at the top and three at the bottom; some women's models use two. On a genuine watch each bar is crisply and evenly cut with uniform depth and spacing. Counterfeits often get the count wrong or render the bars shallow, uneven or softly rounded rather than sharply defined.

Yes. Jaeger-LeCoultre is a full manufacture, and Reverso models use in-house movements built to fit the rectangular case. Current hand-wound Tribute and Classic Small Seconds models use the rectangular Calibre 822 (21,600 vibrations per hour, 19 jewels, roughly a 42-hour power reserve), while the twin-dial Duoface uses the Calibre 854 family. Genuine movements show Cotes de Geneve striping, bevelled edges and cleanly finished screws. Fakes typically hide a generic round movement with little or no finishing.

The Reverso was created in 1931 for British army polo players stationed in India who kept shattering their watch crystals during matches. Swiss businessman Cesar de Trey brought the problem to Jacques-David LeCoultre, and designer Rene-Alfred Chauvot devised the reversible case that could be flipped to present a solid metal back and protect the glass. The name comes from the Latin for "I turn around." The Art Deco design outlived its sporting origins to become one of the most recognizable watches in the world.

On Monoface models the reverse of the case is a blank metal panel that Jaeger-LeCoultre offers to personalise with engraving, from simple initials to elaborate motifs. This is one reason the Reverso is so popular as a gift. When authenticating, remember that a factory or aftermarket engraving is normal on the reverse, but the JLC logo, model name and serial engravings elsewhere on the watch should still be crisp and correctly formed.

The Duoface hides a second dial on the reverse of the case, driven by the same single movement. A second gear train reverses the rotation so the back dial keeps correct time, and it usually displays a second time zone set by a slider in the case band. When you flip a genuine Duoface, both dials are fully finished and track time accurately. A fake may leave the reverse blank, non-functional, or fitted with a crude second dial that does not keep time.

Yes. Upload clear photos of the front dial, the case profile showing the gadroons, the reverse of the case, and the movement if you can see it. Our AI weighs the case proportions, gadroon machining, dial printing and typography, and movement finishing against genuine references and returns an authenticity verdict with a full breakdown in about 30 seconds. For a high-value purchase, pair the scan with an in-person inspection by a certified watchmaker.