Seiko Prospex x Solar ft. Speedtimer Men Formal Round 100m Water Resistant Watch HBJ002P1 HBJ002 HBJ-002 HBJ-002P1 Seiko Prospex Speedtimer Solarchronograph, a sporty chronograph where every detail reflects precision timekeeping. Powered by the solar Caliber V192 with a six-month power reserve, its stainless steel case features a two-tone aluminium bezel and an arched, inner anti-reflective sapphire crystal. A striking minute hand and central seconds hand ensure elapsed time is read at a glance. 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: 41.4 mm Length: 45.9 mm Lug width: 21.0 mm Other Specifications Seiko Prospex x Solar ft. Speedtimer 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)