Women's model, official synchronization, with even higher quality. The 2025 new Rolex Oyster Perpetual 31 series features: 1. Equipped with an imported movement, synchronized with the original, without any extra calendar positions. The quality is stable and reliable. 2. Same as the original with a case diameter of 31mm. 3. Polished hour markers with top-grade Swiss ice blue luminescence, consistent with Rolex 's original luminescence. 4. Integrated mid-case design with a screw-down case back and winding crown for exceptional water resistance. 5. Top-notch craftsmanship, with each strap perfectly fitting the lugs, providing the utmost comfort for the wrist.