Seiko 5 Sports SKX Mid-Size. With vintage styling and colors recalling the quartz diver’s watches of the 1980s, the mid-size SKX design offers the 38mm case diameter of the originals, but with a slimmer case and a durable, yet comfortable, three-row sport bracelet. Providing automatic technology that you control with every movement, this dynamic timepiece is powered by a 24-jewel movement that beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours and manual winding capability. The charcoal dial with gold accents, framed by a black uni-directional rotating elapsed timing bezel, features a day/date calendar and luminous hands and markers. In stainless steel, with locking tri-fold push button release clasp and a screwdown see-through caseback for a view of classic timekeeping in action. 10 bar, 100M Water ResistantSpecifications Model: SRPL79 Collection: Seiko 5 Sports Movement: Automatic Caliber: 4R36 Power reserve / battery: approximately 41 hours Dial color: Gray Diameter: 38 mm Thickness: 12.1 mm Lug-to-lug: 44.2 mm Lug width: 20 mm Water resistance: 10 bar, 100 meters (330 feet) Crystal: Hardlex crystal Strap / band: Stainless steel bracelet Case material: Stainless steel case