Prospex Speedtimer BIF Solar Chrono Black Dial

Prospex Black Series 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. Following last year's successful limited edition, this dramatic watch is part of a high-intensity collection inspired by the 1969 “Speedtimer," the world's first self-winding chronograph, extending it to the Black Series.