Jaeger-LeCoultre Q1372510 Master Ultra Thin Power Reserve Pink Gold Eggshell Dial Watch

Jaeger-LeCoultre Master Ultra Thin Power Reserve – Ref. Q1372510

The Jaeger-LeCoultre Master Ultra Thin Power Reserve Ref. Q1372510 is an elegant expression of refined craftsmanship in pink gold. With its 39 mm case in 18-carat pink gold, eggshell/beige “eggshell” dial, and ultra-thin profile, this timepiece blends dress watch sophistication with practical complications. Designed for connoisseurs who appreciate understated luxury, this model is equally at home on formal occasions or daily wear.

Case Dimensions

The case is crafted from solid 18-carat pink gold, measuring 39.00 mm diameter and approximately 8.95-9.00 mm thickness, offering a graceful presence that doesn’t overpower the wrist. The thin profile is a hallmark of the Master Ultra Thin collection, underlining Jaeger-LeCoultre’s mastery of slim watchmaking. The lugs are gently curved, contributing to wrist comfort and blending into the overall elegant silhouette. A sapphire crystal protects the dial up front, and a display sapphire back reveals movement details. Water resistance is rated at 5 bar (≈ 50 meters), secure for day-to-day life though not for diving.

Dial Design Readability

The dial is a soft eggshell beige (sometimes described as eggshell or ivory) finish, creating an understated, warm backdrop that harmonizes with the pink gold of the case. Applied stick indices and dauphine-style hands in matching gold tones provide contrast with refinement. On the left of the dial is the power reserve indicator, on the right is the date window, and a small seconds subdial sits at 6 o’clock. These three counters are balanced, giving the dial symmetry and visual harmony without clutter.

Movement Complications

Inside the Q1372510 beats the Jaeger-LeCoultre calibre 938, an automatic movement that combines elegance with functionality. It delivers 70 hours of power reserve, ensuring the watch continues to run reliably over several days of non-wear. The movement operates at 4 Hz (28,800 vibrations per hour), giving smooth hand motion and dependable accuracy. Through the transparent case back, one can admire the finishing, the rotor, and movement architecture. Key functions are hours, minutes, small seconds, date, and power reserve indicator.

Strap Wearability

This reference is paired with a high-quality black alligator leather strap, which locks via a pink gold pin buckle matching the case. Lug width is 21 mm. The strap complements the warm tones of the dial and case, enhancing its dress character. It is comfortable and elegant, making the piece wearable over long periods.

Technical Specifications

• Reference: Q1372510
• Case Material: 18-carat pink gold
• Diameter: 39.00 mm
• Thickness: ~8.95 mm
• Water Resistance: 5 bar / ~50 m
• Dial: Eggshell/beige tone, with applied stick indices dauphine hands
• Movement: Automatic calibre 938; small seconds; date; power reserve indicator; 70-hour reserve
• Strap: Black alligator leather with pink gold pin buckle

Unique Characteristics Q1372510

• Elegant power reserve display: The left-side power reserve indicator is a useful complication rarely seen in ultra-thin dress watches.
• Warm pink-gold case with eggshell dial: The combination offers exceptional warmth and a classic yet modern aesthetic—more luxurious than simple steel or white-gold versions.
• Balance of form and function: Although ultra-thin, it packs useful complications without overcrowding the dial, maintaining legibility and harmony.
• Long power reserve: 70 hours is generous, giving flexibility for wearers who may rotate watches — worry-free over weekends.

Conclusion

The Jaeger-LeCoultre Master Ultra Thin Power Reserve Ref. Q1372510 is a standout in the dress watch category. With its luxurious pink-gold construction, elegant eggshell dial, slim profile, balanced complications, and reliable 70-hour movement, it blends sophistication and utility in a way few timepieces do. For those seeking timeless elegance born from expert craftsmanship, this model offers both prestige and practicality.