Master Ultra Thin Power Reserve

The Jaeger-LeCoultre Master Ultra Thin Power Reserve, reference Q1378420, is a refined and elegant timepiece that perfectly reflects the classical design codes and mechanical expertise of the Jaeger-LeCoultre manufacture. Part of the distinguished Master Ultra Thin collection, this model combines understated aesthetics with useful complications in a beautifully balanced design. This certified pre-owned luxury watch is offered in very good condition and is accompanied by its original papers.

The watch features a 39 mm stainless steel case with slim and elegant proportions, highlighting the refined character of the Master Ultra Thin line. Its polished surfaces enhance the watch’s timeless appearance while maintaining a discreet presence on the wrist. The silver dial presents a harmonious and sophisticated layout, with applied hour markers and dauphine-style hands that ensure excellent legibility while reinforcing the watch’s classic identity.

A power reserve indicator positioned at approximately 10 o’clock provides a practical display of the remaining energy stored in the movement. A date display at around 2 o’clock and a small seconds subdial at 6 o’clock complete the dial, creating a balanced composition that is both functional and visually refined.

The watch is fitted with a high-quality leather strap that complements the elegant design and enhances comfort for everyday wear or formal occasions.

Powering the timepiece is the Jaeger-LeCoultre Manufacture Calibre 938 automatic movement. Developed and produced in-house, this movement is known for its precision and reliability and offers a power reserve of approximately 43 hours, reflecting the brand’s longstanding tradition of fine mechanical watchmaking.

Offered in very good condition and supplied with its original papers, this pre-owned luxury watch represents a sophisticated opportunity to acquire a distinguished Jaeger-LeCoultre timepiece from the Master Ultra Thin collection.