Prospex Speedtimer SSC963 MoonData A synthetic blue spinel cabochon

A synthetic blue spinel cabochon crown accents the 30mm gold-tone stainless steel case that features a sapphire crystal and a matching bracelet with a push-button deployant closure

Timeless and elegant

ensuring visibility even in the dark

follows ISO standards for scuba diving to depths of up to 300 meters

Prospex Speedtimer SSC963 MoonData A synthetic blue spinel cabochonDesigned for those who treat life as the ultimate adventure, Seiko Prospex keeps moving forward, meeting every challenge with technological excellence and winning design. Combining precision timing with wearability and the energy efficiency of solar power, this exceptional watch, inspired by Seikos first precision chronographs, developed for international sporting competitions in 1964, provides chronograph measurement of up to 60 minutes of elapsed