A counterfeit Jaeger-LeCoultre 1558420 is almost always exposed by the case, not the dial. The genuine Reverso Classic Large Duoface measures roughly 47.0 mm by 28.3 mm, sits about 10.3 mm thick, and flips on steel tracks with a firm, even glide that cheap copies cannot reproduce. If the flip feels gritty, rattles, or stops before a full 180 degrees, the watch is not a Jaeger-LeCoultre.
What is reference 1558420?
Reference 1558420 (Q1558420) is the steel Reverso Classic Large Duoface, a two-faced rectangular watch introduced in the mid-2010s. The front shows a silvered guilloche dial with small seconds, while the reverse carries a second time zone with a 24-hour day and night display.
Inside sits a hand-wound Jaeger-LeCoultre manufacture calibre with a 42-hour power reserve. Because one movement drives two dials on a single carriage, it ranks among the more demanding Reverso calibres to copy.
How do you spot a fake Jaeger-LeCoultre 1558420?
Case dimensions and the Reverso flip
- Measure the case. A real Large Duoface is about 47.0 x 28.3 mm, and most copies run 1 to 3 mm short or long.
- Flip the case several times. Genuine tracks feel smooth and damped, while fakes grind or wobble.
- Check the gaps. On a real Reverso the carriage sits flush with the frame when closed.
Dial printing and finishing
Genuine guilloche lines are cut deep, spaced evenly, and catch light in a consistent pattern. Fake dials use stamped or printed texture that looks flat under a loupe. The brand name on a real 1558420 is crisp, with clean apertures and no ink bleed.
Movement and caseback engravings
A genuine 1558420 shows Geneva stripes, blued screws, and jewelled finishing on a hand-wound calibre. Quartz or undecorated automatic movements are the clearest tell. Between the lugs, the reference and serial numbers on a real watch are cut cleanly and match the paperwork.
Weight, strap, and hardware
A genuine steel Reverso has a solid, cool heft and a signed alligator strap with a well-machined folding clasp. Counterfeits usually feel light, use thin leather, and show soft or misaligned engraving on the buckle.
Why are Reverso fakes harder to make than round-watch fakes?
The sliding carriage, dual dials, and rectangular case demand tight tolerances that mass-production counterfeiters rarely meet. Round fakes can hide flaws behind a familiar shape, while a Reverso cannot. That is why most 1558420 copies fail at the flip mechanism first.
What should you verify before buying a used 1558420?
- Request sharp photos of the caseback, lugs, and crown.
- Ask for the serial and reference numbers and confirm they match the warranty card.
- Have an independent watchmaker inspect the movement.
- Price it realistically, since a large discount is the oldest red flag.
FAQ
Do quartz fakes of the 1558420 exist?
Yes, and they are easy to catch because the seconds hand ticks instead of sweeping. A genuine 1558420 has small seconds that beat smoothly at a hand-wound calibre frequency.
Can a fake 1558420 be serviced?
Rarely by an authorised Jaeger-LeCoultre workshop, which refuses watches carrying counterfeit serial numbers. Independent repairers may help if the movement is a common automatic, but genuine Reverso parts seldom fit a copy.