Seiko 5 Sports SKX GMT U.S. Special Creation Automatic with manual winding capability 21,600 vibrations per hour Power reserve: approximately 41 hours 24 jewels Bi-color 24-hour GMT bezel Charcoal dial Large gold-tone GMT hand  Magnified date calendar Luminous hands and markers Screwdown see-through caseback Case diameter: 42.5mm Stainless steel case with two-tone finish Stylized five-row stainless steel bracelet Tri-fold push button release clasp with secure lock Water resistant to 10 bar, 100 meters (330 feet) Caliber 4R34