Jaeger-LeCoultre · Family: Reverso
The Reverso Classic Large Duoface (Q3958420) is the double-dial version of watchmaking's most iconic reversible case: one dial shows local time, and flipping the case 180° reveals a second time zone with a day/night indicator. Cazador does not yet have enough verified price observations (n=0) to publish a reliable range. The differential fact: the case doesn't swivel on ordinary hinges but slides on a lateral rail patented in 1931, originally built to survive being knocked around during a polo match.
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Insufficient market data: Cazador currently holds 0 verified PricePoints for ref. Q3958420 (internal minimum threshold: 5 observations). We do not publish a price range, trend chart, or percentiles until enough listing data from dealers, auction houses, or verified user contributions is available.
The Reverso was born in 1931 at the request of César de Trey, a Swiss businessman who watched British officers playing polo in India and noticed their watches couldn't survive the impact of the game. De Trey commissioned a case that could protect itself: French engineer René-Alfred Chauvot patented the sliding, reversible case mechanism that Jaeger-LeCoultre has manufactured ever since, and which remains, nearly a century later, mechanically almost identical in principle to the original. Flipping the case on its lateral rail isn't a decorative gesture — it shields the crystal when the watch isn't being worn, and over time JLC put the reverso side (originally plain and engravable) to further use. That's how the Duoface family emerged in the 1990s: instead of leaving the back blank or engraved, a full second dial with its own hour-and-minute train was installed, aimed at travelers who needed to track two time zones without a conventional GMT hand. The Night & Day version later added a day/night indicator on the rear dial, avoiding the classic mix-up between 3pm and 3am. Within the current Reverso catalog, it's worth distinguishing three families by size and purpose: the Reverso Classic (closest in proportions to the original 1931 case, slimmer and dressier), the Grande Reverso (a larger case built to house complications like Tribute or Duoface pieces with better legibility) and the Reverso Tribute (a heritage line that re-issues historical codes with period-correct finishing and details). The Classic Large Duoface sits precisely at that intersection: it keeps the Classic's slim Art Deco elegance while using the 'Large' case, with enough room for the second dial without losing the silhouette that made the Reverso a symbol since the 1930s.
Cazador doesn't yet have enough verified price observations for this reference (n=0, internal minimum 5). Once we accumulate dealer and auction data, we'll publish a price range, trend, and update date directly on this page.
The Classic is slimmer and closer in proportion to the original 1931 case, meant for dressier wear. The Grande Reverso has a larger case, designed to accommodate complications (like Duoface) with better legibility on both dials.
It was designed in 1931 for British officers playing polo in India: flipping the case on its lateral rail protected the crystal during the match, exposing the reverso side — originally plain — instead, with no risk of breakage.
It adds a full second dial on the case's rear face, running an independent time zone. It's useful for travelers: check local time on the front, then flip the case to read home time (or another zone) on the reverso.
No: unlike the plain-back classic Reverso, where the smooth reverso side is traditionally a canvas for personal engraving, on the Duoface that surface is occupied by the functional second dial, leaving no room to engrave.
Reverso Duoface models have traditionally used manual-wind movements, consistent with the line's thin case and classic aesthetic. [UNVERIFIED: the exact caliber number for this specific reference has not been cross-checked against source documentation].
The leading 'Q' is the standard prefix JLC uses across all its modern catalog references; the remaining digits identify the specific model, material, and variant within the Reverso Classic Large Duoface family.