Discover Jaeger-LeCoultre's precision with the Master Ultra Thin (ref. Q169242J), an elegant watch engineered for daily versatility and long-term reliability. From profile to crystal, the architecture convinces: crafted in pink gold and measuring 41.5 mm in diameter, with a thickness of 12.1 mm, defined by a round silhouette. The caseback is closed, and the crystal is sapphire, delivering water resistance to 5000 meters. Up close, the dial rewards inspection: a ivory tone with matte finish, framed by stick / dot hour markers, and dauphine hands. Inside, precision takes center stage: the 983AA caliber. Introduced in 2024. Designed for real-world wear, the watch transitions smoothly from tailored looks to casual settings. Manufacturing tolerances and surface treatment highlight consistent quality control. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.