Discover Longines's precision with the Master Collection (ref. L2.631.8.70.3), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: crafted in pink gold and measuring 38.5 mm in diameter, defined by a round silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 3000 meters. The dial composition is deliberate and legible: a silver tone, framed by arabic numerals hour markers, and feuille hands. Beneath the caseback lies dependable performance: the L635 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.