Duometre
Chronograph Moon
Duometre
Chronograph Moon
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Case
Pink Gold 750/1000 (18 carats)Diameter: 42.5 mmThickness: 14.2mmWater resistance
5 barDial
Appliqued numerals, Silvered grey, OpalineStrap
Alligator leather, BrownInterchangeable: YesLug width: 21mmStandard strand length at 12h: 75mmLength 6h: 120mmBuckle
Pin bucklePink Gold 750/1000 (18 carats)Buckle width: 18mmJaeger-LeCoultre Calibre 391
Functions
Moon phase, Seconds, Jumping seconds, Twin Power-Reserve, Chronograph, Hour - Minute, Chronograph's Second, Day/Night indicatorMovement
Manual winding, Components: 482, Vibrations per hour: 21600, Jewels: 54, Barrel: 2, Thickness: 8.24mm, Power reserve: 50 hours
Color and material variants
OVERVIEW
THE PUREST CHRONOGRAPH
Marrying the high precision of a chronograph with the charm of a celestial complication, the Duometre Chronograph Moon watch is powered by the new Calibre 391.
MECHANISM
THE ESSENCE OF INVENTIVENESS
Introduced in 2007, the patented Duometre mechanism features two barrels and two separate gear trains linked to a single regulating organ. One gear train powers the time and the other drives additional functions, guaranteeing exceptionally high degree of operating accuracy.
THE CONUNDRUM OF COMPLICATIONS
The chronograph was chosen for the first application of the Duometre as it represented the greatest challenge to accurate timekeeping because its operation requires short bursts of very high power. Since, the Duomètre has been associated with several other watch complications.
FUNCTIONS
AN ENTIRELY NEW CALIBRE 391
For Calibre 391, Jaeger-LeCoultre’s engineers started from the ground up to develop a fully integrated movement that combines a manually wound mono-pusher chronograph with moon phase and night-day complications, as well as two power reserve indicators and a seconde foudroyante (flying second) display.
CALIBRE
DESIGN
OPALINE & AZURE REFINED DIAL
Elegant and intuitive to read, the dial echoes traditional aesthetics featuring three distinctive counters where the powdery texture of the opaline contrasts with the azuré. Adding to the visual appeal, counters are slightly sunken below the main surface, while the edge of the dial is subtly curved, following the glass box crystal contours.
BRUSHED, POLISHED & MICROBLASTED CASE
The case is a complex structure of 34 separate parts and the lugs are screwed rather than integrated to enable the use of multiple finishing techniques. A mixture of polished, brushed and micro-blasted surfaces creates a fascinating play of light with every movement of the wrist.
CAPTIVATING MOON
Enhancing the symmetry of the layout, the moon phase display is integrated into the chronograph hours and minutes sub-dial, which is set at 3 o’clock. Its blue background is visually balanced by that of the Night and Day display, which is integrated into the time sub-dial at 9 o’clock.
MADE IN OUR MANUFACTURE
From its calibre to its case, every Jaeger‑LeCoultre luxury watch is designed, manufactured and assembled under one roof, at our Manufacture in the Vallee de Joux. Our obsession with quality is renowned as every Jaeger‑LeCoultre model undergoes strict “1,000 Hour Control” testing. This unique program provides internal certification tests that far exceed official chronometry tests.
It includes movement testing before and after casing and extends throughout assembly, according to conditions that match daily wear. A quality seal is engraved on the back of every watch once it meets our strict standards.
OUR NOVELTIES
Resolving the fundamental problem of complex mechanical watches, the Duometre mechanism pushes the boundaries of watchmaking and epitomises the concept of precision. Discover the four latest expressions of the collection.
