Introducing: Jaeger-LeCoultre Duometre Heliotourbillon Perpetual Platinum (Live Photos)

Introducing: Jaeger-LeCoultre Duometre Heliotourbillon Perpetual Platinum (Live Photos)

When Jaeger-LeCoultre unveiled theDuometre Heliotourbillon Perpetualat Watches & Wonders 2024—a release we singled out at the time as one of the most exciting of the show—it marked a new era for the Duometre collection by uniting two pillars of Jaeger-LeCoultre's high-precision expertise: the patented Duometre concept and an entirely new triple-axis tourbillon construction. The 18K pink gold debut introduced Calibre 388 to the world.

Two years on, La Grande Maison returns to that calibre with a reinterpretation cast entirely in platinum, paired with a matching bracelet and an anthracite grey dial. Limited to 20 numbered pieces, this new execution distills one of the most technically ambitious creations from the Vallée de Joux into a single, deliberately restrained monochromatic palette.

Things to Know About the Watch

The 44 mm savonette-inspired case is crafted in platinum 950 and comprises 40 separate parts. Screwed lugs, rather than integrated ones, allow Jaeger-LeCoultre's finishers to alternate polished, brushed, and microblasted surfaces across the case architecture, with the convex crystal and deeply notched winding crown reinforcing the watch's tactile presence. A sapphire crystal window cut into the left flank of the case reveals the triple-axis tourbillon in profile.

Created specifically for this reference, the new platinum 950 five-row bracelet integrates fluidly into the case silhouette. Each link is individually domed along the 12-to-6 axis, echoing the curvature of the lugs, with brushed and beveled finishing on both sides. The clasp is executed in white gold 750. The bracelet is very supple and quite comfortable.

The anthracite grey dial brings together opaline, brushed, and azuré finishes to delineate the indications across a symmetrical, triangular layout. The grande date anchors the apex at 3 o'clock, with the two power reserves flanking the central time display. Moon-phases and the day indication occupy the upper register; months and years sit in the lower sector. A curving microblasted and bevelled platinum bridge separates the dial side from the tourbillon aperture, where the spinning cages are set above a deep blue lacquer "starry sky" background, with red triangles on the third cage marking 20-second intervals against a sapphire crystal arc.

The Movement

Manually wound Calibre 388 unites two of Jaeger-LeCoultre's signature innovations. The Duometre architecture, patented in 2007, employs two barrels and two independent gear trains linked to a single regulating organ — one train driving the time, the other powering all complications — ensuring the escapement receives uninterrupted power. Each barrel delivers 46 hours of autonomy.

The Heliotourbillon advances the maison's eight decades of tourbillon research with a triple-axis construction. Three titanium cages, supported on ceramic ball bearings, rotate on three axes around a cylindrical hairspring; the assembly comprises 163 components and weighs less than 0.7 grams. The perpetual calendar features a grande date display, a moon-phase indication accurate to 122 years, and — uniquely — allows the time to be set forwards or backwards without compromising the calendar mechanism.

On the Wrist & Price

The oversized 44 mm savonette case wears with genuine presence but never feels too big; its rounded contours and convex crystal softening the visual footprint against a tailored cuff. The watch's weight is significant due to its platinum construction. The anthracite grey dial reads beautifully on the wrist, with opaline, brushed, and azuré finishes shifting subtly as the wrist moves through the light. The grande date at 3 o'clock anchors the composition against the triple-axis Heliotourbillon at 9 o'clock, framed by its deep blue lacquer background. The five-row platinum 950 bracelet distinguishes itself with domed links that flow seamlessly from the case, and alternating brushed and polished finishes that signal weight and substance without flashiness.

The Duometre Heliotourbillon Perpetual in platinum is a serious statement piece for collectors who privilege monochrome restraint over visual contrast.

Sticker Price EUR 500,000—approx USD 582,000—on bracelet;EUR 420,000—approx USD 488,000—on strap. For more info on Jaeger-LeCoultreclick here.