The Luminox Modern Mariner XS.6252.BO is a Swiss-made men's dive watch featuring a 45mm black PVD-coated stainless steel case and matching black steel bracelet with a deployment clasp. The matte black dial displays gunmetal gray pencil-style hands and Arabic numerals in both 12- and 24-hour formats, with a date window at 3 o'clock and a screw-down crown for added water resistance.

Powered by a Swiss Ronda caliber 715 HH6 quartz movement, the watch offers reliable timekeeping with hours, minutes, seconds, and date functions. The scratch-resistant sapphire crystal protects the dial, while a uni-directional rotating dive bezel supports underwater timing. Water resistance is rated to 200 meters (660 feet), making it suitable for serious diving and water sports.

Luminox's signature Always Visible Light Technology (LLT) tritium-based luminescent tubes illuminate the hands and bezel pip continuously without requiring activation, providing reliable low-light visibility around the clock. The entire case and bracelet carry a black PVD coating for a stealthy, blacked-out aesthetic.