Seiko Men's Coutura Solar Chronograph Black Dial Watch SSC745 Product Description: From the Coutura Collection Solar chronograph Powered by light energy - no battery change required 6-month power reserve once fully charged Chronograph measures up to 60 minutes of elapsed time in 1/5-second increments with split time measurement function Black dial with pixelated pattern and blue accents Power reserve indicator 24-hour subdial Date calendar LumiBrite hands and markers Sapphire crystal Screwdown caseback Case diameter: 45.5mm Stainless steel case with black ion-finish Specially designed black silicone strap Cabochon crown Water-resistant to 10 bar, 100 meters (330 feet) Caliber V192