Seiko Prospex Speedtimer Solar Chronograph Blue Dial Watch SSC815 SEIKO Prospex Speedtimer Solar Chronograph Watch SSC815 Blue Dial Design inspired by Seiko's first precision chronographs, developed for international sporting competitions in 1964Powered by light energy - no battery change required6-month power reserve once fully chargedChronograph measures up to 60 minutes of elapsed time in 1/5-second increments with split time measurement functionNavy blue dial with sand-blasted texture, red accents and black subdialsDate calendar24-hour subdialBeige LumiBrite hands and markersCurved sapphire crystal with anti-reflective coating on the inner surfaceBlack tachymeter bezelScrewdown casebackCase diameter: 39.0mmStainless steel case and braceletTri-fold push button release claspWater-resistant to 10 bar, 100 meters (330 feet)Caliber V192 Design inspired by Seiko's first precision chronographs, developed for international sporting competitions in 1964Powered by light energy - no battery change required6-month power reserve once fully chargedChronograph measures up to 60 minutes of elapsed time in 1/5-second increments with split time measurement functionNavy blue dial with sand-blasted texture, red accents and black subdialsDate calendar24-hour subdialBeige LumiBrite hands and markersCurved sapphire crystal with anti-reflective coating on the inner surfaceBlack tachymeter bezelScrewdown casebackCase diameter: 39.0mmStainless steel case and braceletTri-fold push button release claspWater-resistant to 10 bar, 100 meters (330 feet)Caliber V192 SEIKO Prospex Speedtimer Solar Chronograph Watch SSC815 Blue Dial Design inspired by Seiko's first precision chronographs, developed for international sporting competitions in 1964Powered by light energy - no battery change required6-month power reserve once fully chargedChronograph measures up to 60 minutes of elapsed time in 1/5-second increments with split time measurement functionNavy blue dial with sand-blasted texture, red accents and black subdialsDate calendar24-hour subdialBeige LumiBrite hands and markersCurved sapphire crystal with anti-reflective coating on the inner surfaceBlack tachymeter bezelScrewdown casebackCase diameter: 39.0mmStainless steel case and braceletTri-fold push button release claspWater-resistant to 10 bar, 100 meters (330 feet)Caliber V192 From the Essentials Collection. Offering classic dress/sport design, the Essentials Collection provides the ideal solution for everyday wear. With contemporary minimalism, this sharp and streamlined watch offers a sleek black sunray dial with date calendar, and a slim and comfortable stainless steel case and bracelet in dramatic black ion finish. 3 bar, 30M Water Resistant Case: Stainless steel case with black ion finish Case Diameter: 40.6mm Crystal: Hardlex crystal Water Resistance: 3 bar, 30 meters (100 feet) Dial Color: Black Strap: Stainless steel bracelet with black ion finish Movement: Quartz Caliber 6N42