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The Jaeger-LeCoultre Reverso Duoface puts two time displays on opposite sides of a reversible case, letting the wearer track local time and a second time zone. The available official specifications here apply to the Reverso Tribute Duoface Small Seconds, reference Q3988481—not every Duoface. They describe how the watch works, but do not establish six months of personal wear, accuracy, comfort or durability.
How does the Jaeger-LeCoultre Reverso Duoface work?
On the Reverso Tribute Duoface Small Seconds Q3988481, the two dials display separate time-zone information. Jaeger-LeCoultre describes the back-to-back displays as driven by one manual-winding movement, with the pairs of hands rotating in opposite directions. The blue front dial shows hours, minutes and small seconds; the reverse shows a second time zone and a 24-hour indicator. Jaeger-LeCoultre’s US product page for Q3988481 is the reference for these specifications.
How do you set the second time zone?
For Q3988481, Jaeger-LeCoultre says the second-zone hour is adjusted using a small slider in the top case band. The documented control sets the second time zone independently of the front display. The product information does not provide a complete operating sequence, so consult the manual for the exact reference before adjusting the watch; do not assume every Reverso Duoface uses an identical control or setting procedure.
How big is the Reverso Tribute Duoface Small Seconds?
Jaeger-LeCoultre lists Q3988481’s stainless-steel case at 47 × 28.3 mm and 10.34 mm thick. Those measurements belong to this reference; they should not be applied to an unidentified Reverso Duoface. The page also names a pair of straps designed by Casa Fagliano, but does not establish general compatibility with replacement straps.
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What movement and power reserve does Q3988481 have?
Jaeger-LeCoultre specifies a manually wound in-house Calibre 854, with a movement thickness of 3.8 mm, a frequency of 21,600 vibrations per hour and a stated power reserve of 42 hours. These are manufacturer-published specifications, not independent measurements of timekeeping or reserve. Expect to wind this model by hand; no automatic winding is specified on its product page.
Is the Reverso Duoface water resistant?
Jaeger-LeCoultre lists 3 bar water resistance for Q3988481. The related Q3988482 page also lists 3 bar, but a rating alone is not a blanket recommendation for swimming or other water activity. Check the instructions for the exact reference and have the watch’s condition considered before exposing it to water.
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Are Q3988481 and Q3988482 the same watch?
No. They are separate references with similar listed case dimensions and a manual Calibre 854, but the specifications should not be silently combined. The US page for Q3988481 gives a thickness of 10.34 mm and identifies the front dial as blue with small seconds. The EU page for Q3988482 lists 10.3 mm thickness and describes local time and a second time zone with a 24-hour display. It labels Q3988482 “Out of collection” and refers interested customers to Personal Advisors; that status applies to this reference on that regional page, not to every Duoface or market. Jaeger-LeCoultre’s EU product page for Q3988482 has the model-specific status and specifications.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What can—and can’t—be concluded from “six months with”?
The official product information establishes the documented models’ design and listed specifications; it does not verify six months of ownership or wear. It therefore cannot support first-person conclusions about daily comfort, actual accuracy, durability, service experience or how useful the second display proves in practice. Anyone evaluating an individual watch should confirm its reference and consult owner experience or independent testing for those questions.
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