Seiko Prospex x Solar ft. Speedtimer aka The Black Series aka Night Vision Men Formal Round 100m Water Resistant Watch SSC917P1 SSC917 SSC-917 SSC-917P1 Discover the Seiko Prospex SSC917 Speedtimer Solar Chronograph, part of the Black Series with night vision-inspired green LumiBrite Pro for ultimate darkness visibility. Features a 39mm black hard-coated stainless steel case, V192 solar movement with 6-month power reserve, and 1/5-second chronograph. Includes tachymeter bezel, curved sapphire crystal, and 100m water resistance. 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 (hard coating) 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 The Black Series aka Night Vision 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)