Seiko Speedtimer Solar Chronograph. Designed for those who treat life as the ultimate adventure, Seiko Prospex keeps moving forward, meeting every challenge with technological excellence and winning design. This dramatic watch is part of a high-intensity collection inspired by the 1969 Speedtimer, the world's first self-winding chronograph, and employs an iconic black and white color scheme nicknamed ""Panda"" by fans. Framed by a black tachymeter bezel, the white dial features high-contrast subdials, 24-hour and power reserve indicators, a date calendar, and LumiBrite on the hands, markers, and the tip of the chronograph hand for superior visibility. The chronograph function measures up to 60 minutes of elapsed time in 1/5-second increments and includes a split time function, while the solar cell, powered by any light source, with no battery change required, provides a 6-month power reserve when fully charged. Crafted of stainless steel, this timepiece includes a curved anti-reflective sapphire crystal, secure screwdown caseback and tapered three-link bracelet with tri-fold push button release clasp. 10 bar, 100M Water Resistant