http://www.thewatchbox.com Blue is the corporate color of Ulysse Nardin, and that's no accident of marketing minds. As a longtime supplier of the world's finest mechanical marine chronometers, the watchmaker from Le Locle built its name on precision instruments. That heritage is immortalized and celebrated and in the Ulysse Nardin Maxi Marine Blue Diver Blue Sea limited edition of 999 pieces. Despite its contemporary 46mm case size, the Maxi Marine Blue Diver is supple and comfortable on the wrist. Ulysse Nardin employs a sophisticated vulcanized rubber wrapping technique to envelope the stainless steel case in form-fitting natural rubber. The silken feel of the material is a pure pleasure to experience against the skin, and the flawless fit (no gaps can be found even with loupe assistance) will gratify the eyes of the proud owner. The Maxi Marine Blue Diver features a recurring wave motif that starts with its lacquered dial. This high-gloss surface bears the imprint of rolling waves that recall the seafaring heritage of the marque and the sub-surface intent of the model. A power reserve indicator at 12 o'clock is true to history, and it adds a useful complication to the package. At six o'clock a traditional small seconds subdial recalls the old 50-60mm Ulysse Nardin deck chronometers, but an integrated date window offers a modern convenience unknown to old-time mariners. Below the dial beats a UN-26 automatic caliber derived from the thin and fine ETA 2892-A2 in top-of-the-line “Chronometer” specification. More than an homage, the Maxi Marine Diver Blue Sea is a true COSC Swiss Chronometer that meets and exceeds the accuracy of historic timepieces. Each Ulysse Nardin Maxi Marine Diver is certified as such by Timelab, official agent of the COSC evaluation. The 15-day trial tests the watch for accuracy and isochronism in five positions and at three temperatures. A maximum 24-hour deviation of -4/+6 seconds is permitted for certified timepieces. Exterior features of the Ulysse Nardin Maxi Marine Diver Blue Sea include an individual numbering plate at 9 o'clock (again, true to history). The Blue Sea’s natural vulcanized rubber strap matches the color of the case cladding and echoes the imprinted wave motif of the dial. The blue rubber strap is double-hinged for outstanding wrist fit. The strap's PVD titanium double-joint allows Ulysse Nardin to use a flush-fitting strap junction at the lugs without the stiffness that often results from these aesthetically pleasing arrangements. It's the best of both worlds: a strap that leaves no gap at the case and fits comfortably on the forearm. See this Ulysse Nardin Maxi Marine Diver Blue Sea limited edition in high-resolution images on thewatchbox.com with complete Ulysse Nardin factory accessories. Video and content by Tim Mosso.