Jaeger-LeCoultre is continuing its enduring seasonal tradition by introducing a striking new addition to its esteemed Master Ultra Thin Moon collection just in time for the autumn season. The venerable Swiss watchmaker has officially unveiled a warm, sophisticated iteration of the model crafted from an 18-karat rose-gold case. This latest release follows closely on the heels of the limited-edition variant featuring a textured, grained copper dial that captured the attention of horological enthusiasts late last year.
For aficionados of classic proportions and those who appreciate the ongoing resurgence of more understated timepieces, this release brings particularly welcome news. Staying true to the aesthetic ethos of its predecessors and nodding gracefully to the elegant round dress watches of the 1950s, the new dress watch maintains a refined 36 mm case diameter. This thoughtful sizing ensures the timepiece sits comfortably and discreetly on the wrist, making it an ideal choice for collectors who favor traditional dimensions over the oversized trends of recent decades.
Tapping deeply into its historic expertise in crafting exceptionally slim mechanical movements, Jaeger-LeCoultre has engineered the new reference, designated as Ref. Q1242521, to measure a slender 9.3 millimeters in total thickness. However, the true visual centerpiece of the design is undoubtedly its polished rose-gold case. The case showcases the clean, architectural lines, exceptionally thin bezel, and gracefully curved lugs that have long defined the identity of the Master Ultra Thin family.
This rich precious metal extends harmoniously to the silver sunray-brushed dial, where it reappears to frame the combined date and moonphase display. Situated elegantly at the 6 o’clock position, the complication stands out sharply against a rich midnight-blue starry sky, creating a visually compelling contrast that draws the eye without disrupting the dial’s serene symmetry. Enhancing the sophisticated face of the watch are classic Dauphine hands, thoughtfully detailed with one half featuring a fine satin-brushed finish and the other gleaming with a high polish.
Beating steadily at the core of this elegant timepiece is the Calibre 925, a self-winding mechanical movement designed, developed, and manufactured entirely in-house at Jaeger-LeCoultre’s historic Manufacture-Atelier. Nestled deep within the picturesque watchmaking enclave of Switzerland’s Vallée de Joux, the workshop brings generations of horological mastery to every component. Measuring a mere 4.9 millimeters thick, the movement is fully visible through a transparent sapphire-crystal caseback, allowing wearers to admire the intricate mechanical choreography within.
Despite its remarkably thin profile, the Calibre 925 does not compromise on performance. It delivers a robust 70-hour power reserve, operating at a steady frequency of 4 Hz, and offers a water resistance rating of approximately 160 feet. Beyond its technical specifications, the movement is finished to the high standards expected of the maison. It features traditional Côtes de Genève decorative patterns, striking blue screws, meticulously beveled bridges, and an open-worked 22-karat pink-gold winding rotor that optimizes winding efficiency while offering an unobstructed view of the underlying components.
To complete the presentation, the new timepiece is fitted with a classic black alligator leather strap. This dark, supple material creates a striking contrast that allows the warm pink-gold case to truly pop on the wrist. Designed for both comfort and versatility, the strap can be interchanged with ease and is secured by a matching pink-gold pin buckle, adding yet another subtle touch of precious metal to the overall design.
Jaeger-LeCoultre originally conceived the Master Ultra Thin lineup to serve as the definitive modern dress watch for men, and this latest addition enriches the family with a distinctly warm and luxurious character. The timing of the release aligns effortlessly with the approaching season of holiday gatherings and formal celebrations, offering a sophisticated companion for evening wear. Reference Q1242521 is available now at official Jaeger-LeCoultre boutiques around the world, commanding a retail price of $23,100.
