Seiko Prospex x Solar ft. Speedtimer aka Navy Men Formal Round 100m Water Resistant Watch SSC815P1 SSC815 SSC-815 SSC-815P1 Discover the Seiko Prospex Speedtimer Solar Chronograph SSC815, featuring a navy blue sand-blasted dial with red accents and a solar-powered V192 movement. This 39mm stainless steel watch includes a 1/5-second chronograph, 100m water resistance, and sapphire crystal. Inspired by Seiko 1964 sports chronographs, it combines vintage design with modern technology for precision timing. Caliber Number / Movement V192 (solar powered) Power Reserve / Accuracy Approximately 6 months when fully charged (+/-15 seconds per month) Crystal Sapphire crystal (curved, anti-reflective coating) Luminous LumiBrite on hands and indexes Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 13.3 mm Diameter: 39.0 mm Length: 45.5 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Solar ft. Speedtimer aka Navy Magnetic resistance (4,800 A/m) Screw case back Power reserve indicator Overcharge prevention function Date and 24-hour display Chronograph up to 60 minutes in 1/5-second increment Equipped with small second hand Regular timekeeping (analog display)