Experience the craft of Jaeger-LeCoultre in the Reverso (ref. 2578420), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: crafted in stainless steel and measuring 24.4 mm in diameter, with a thickness of 9.6 mm, defined by a rectangular silhouette. The caseback is double dial, and the crystal is sapphire, delivering water resistance to 3000 meters. The dial composition is deliberate and legible: a silver tone with guilloche finish, framed by arabic numerals hour markers, and baton hands. Beneath the caseback lies dependable performance: the 968A 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.