Unapologetically diving-focused, Seiko's Prospex SNE567 is a serious tool. Its stainless steel case has a lightweight matte black protective shell, measuring 46.7mm in diameter and helping boost its water resistance to 200m, meeting ISO standards for scuba diving. LumiBrite markers and hands help with legibility in the deep, with the latter being run by a Caliber V157 that charges via light and offers a 10-month power reserve. The black textured dial is also home to a date window at 4 o'clock and is surrounded by a black and grey one-way rotating elapsed timing bezel. It sets on a black silicone strap.