The Seamaster Ocean Universe 600m watch is making a sensational debut: the highest version of the Ocean Universe series available on the market.1. Upgraded case with enlarged beveled edges, consistent with the genuine product.2. Upgraded bezel with a black and orange color scheme; the diving scale is closer to a more saturated orange.3. Upgraded ceramic dial with a brighter polish; the date window is larger and more three-dimensional.4. Upgraded strap with beads that are consistent with the original version, providing a more comfortable and snug fit.With a diameter of 43.50mm, it is made of imported 316L stainless steel, featuring orange stitching and imported black PVC textured material, paired with an interchangeable imported rubber strap. CAL: Customized version 8900, exclusively using a black balance wheel movement consistent with the genuine product.