Meet Jaeger-LeCoultre Reverso (ref. 3902420), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: crafted in rose gold and measuring 25.5 mm in diameter, with a thickness of 9.2 mm. The caseback is double dial, and the crystal is sapphire, delivering water resistance to 3000 meters. The dial composition is deliberate and legible: a white tone, framed by stick / dot hour markers, and dauphine hands. Beneath the caseback lies dependable performance: the 854A/2 caliber. Comfort and balance define the wearing experience, making it an easy daily companion. Subtle transitions between textures elevate the overall impression. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.